Punisher 2004 is misunderstood and here's why!
With all courtesy to the OP (and whoever he quotes), a closer watching of the film and some general cinema knowledge goes a long way to explaining The Punisher 2004.
Straight off, I like it. I thought it was trash when i saw it at the cinema, but with subsequent watches, it's an average movie which has some great moments but is mired down in an attempt to be all things to all people.
Good things:
Thomas Jane - considering the crying some did when he was cast, he is excellent. He handles all the elements of the role beautifully - he's sincere, troubled, dead to the world. Add to that how convincing he is when the action heats up and his clear commitment to the training and you have a real world Punisher for me.
Quinten Glass - forget the actor's name - but what a performance. Sinister and vulnerable at the same time. Add in the subtext that he's in love with Saint and it's a great role.
The Western vibe - cause Hensleigh is clearly trying to reference Once Upon A Time In The West all the way through. When viewed in that way, the slightly melodramatic flavour works better.
The Diner Scene - i might be alone in this, but the scene where Harry heck sings to him sent shivers up my spine. Shame they killed him off so quickly.
The execution - brilliantly done. No flaws whatsoever.
The Club - love the scene in its entirety. The cold deliberation is really dramatic - this is a man killing off the last of his humanity.
So, that's me pointed out the great moments. I want to reply to the main points in the OP.
And why does every comic book movie these days have to be an origin story?
Because studios insist that a new audience can understand immediately. Personally, i think it needed a bit more mystery, but when they were clearly retelling OUATITW, I can see that wouldn't have worked cause there's no way the studio would have allowed them to use the same structure as that film, which would have allowed.
Thomas Jane sucks. According to IMDB, he's been in half a dozen other movies I've seen, and I don't remember him even existing in any of them.
Plenty of knowledgable movie viewers do know him - he's not a leading man, but he's a solid actor. You basically don't like him, which is fine, but to say he was bad in the role is just not true.
instead of the remorseless killing machine which Castle is supposed to be. He's a raging alcoholic, he constantly doubts himself, Hell he even seems about to commit suicide at one point. In most of the fight scenes, he spends the majority of the time getting his ass kicked and then limps away half-dead afterwards. What?!! The Punisher should be casually snapping guys' necks and mowing down entire crowds with an M-60, not almost getting killed by just one or two enemies at a time. He's just not mean enough, and it kills the whole movie.
That's your interpretation of the character - much of the time in Ennis' adaptation (which is rapidly becoming canon) he does take a hellacious beating. A good chunk of welcome Back, Frank has him seriously wounded. same with the initial War Zone run. The badass you mention is mostly from the rubbishy 90s run.
Year One, the source of the story, does portray him as a man who has lost everything and he thinks about suicide. He does doubt himself (actually less so in the movie), going to the authorities at first and then with a journalist. This film was him killing off what remained of Frank Castle and becoming the Punisher.
The rest of your post basically comes to my general problem with the film: it doesn't ever settle on what it wants to be - and I think Lionshead have a lot to blame for that. They saw Welcome Back, Frank as the best selling run in years, by a name team coming off of Preacher as a potential money maker. Hensleigh, to his credit, went a little deeper and tried to change the onus of the film. But the studio wanted those elements and, the fact is, a lot of the posters on SHH at the time wanted that stuff too.
If it had stuck to the western feel and revealed the origin as the film went on - i'd have loved if the killers spoke about Castle like he was some sort of monster, telling the increasingly exaggerated tales of his wrath - it might have sat a bit better.
I actually liked the "framing" story - some of it seemed contrived, but it's well thought out - particularly the shot of Glass kissing the guy - beatifully handled - Castle's not disgusted, he's finally seen a way to make his plan work.
But, the constant shifts in tone and the refusal to really let it get dark causes it problems it can never recover from.
if you don't like it, that's fine, but the "review" seems to have some significant problems with the source material as much as the film.