Lot of armchair quarterbacking going on, much of it over some pretty minor elements. We're nitpicking Craig's Bond sarcastically waving at someone now?
There's lot being made of "classic Bond elements" somehow making this film less than it could have been, and I think that's been overstated a bit. There's really not that much classic Bond, beyond a few visual nods to previous films and some very minor plot points and design influences. The tone of the film is still fairly serious. It's not, as another poster pointed out, like this suddenly became a silly, campy story. What they presented was classic Bond reimagined, with a new tone and approach. It's not like suddenly Daniel Craig is cracking jokes every two minutes.
Could they have done more with the supporting character Hinx? Sure. They could have done more with any character. Any movie could. That goes without saying. But they clearly conceived Batista as a silent, unstoppable force. And whether he's trying to gain favor or take over someone else's spot, he's still the archetype of a henchman, and he's obviously meant to fill the "henchman" role within the film. And his actions scenes are fantastic. I don't think he was really underutilized. He had two extended action sequences. That's pretty decent exposure for that type of role.
Why is Bond being in love with Madeleine, or at least her being in love with him, ultimately any less believeable than Bond being in love with Vesper? It's a movie. People fall in love quickly in movies, and they went through a heck of a lot together. Lea Seydoux wasn't an AMAZING Bond girl, but she was very good in her role. She had a good deal of screen presence, matched up nicely with Craig, was subtle and efficient in her performance, and she had enough character depth and relevance to the story not to be forgettable. She's more of a "normal" person than we've seen from Bond girls, even though she could take care of herself to an extent, and I appreciated seeing that for once. She's clearly there to represent the normal life Bond didn't think he could have prior to this film, and that's what she wants and questions him about as well.
People are saying the previous films had more coherent stories, but I don't see how this story isn't coherent. It was a pretty straightforward mystery/adventure. The one major leap storywise was the Spectre ring being hacked. What exactly doesn't make sense about it?
James Bond's seductions have always been a bit creepy. There's a misogynistic edge to it most of the time, often done purposely, but that doesn't make it any less creepy when you think about it. Daniel Craig seems to understand this. He's not trying to be sexy or seductive in the popular sense. He's trying to play alpha, devil-may-care Bond, and let the women who fall for Bond fall for him.
The question "why did they bother to tie SPECTRE to previous films?" keeps coming up. The answer should be fairly obvious. Because 2 out of the 3 previous films featured a shadowy organization that was causing chaos around the world, and this has obviously been an important concept for filmmakers and something they wanted to do with the franchise. By adding this retcon element, it simply gives a better idea of the kinds of things SPECTRE is capable of, aside from what we see in the film. If an organization like SPECTRE had been operating for a while, it makes perfect sense that they'd have been involved in the types of events in previous films.