As a DC fan, time to weigh in.
Respect your opinion OP, but disagree.
IMO DC is killing it on TV. Agents of Shield has nothing on Flash, Arrow and Gotham. Who wants to watch a show about a bunch of supporting characters no one's ever heard of, compared to a show about real A-list Superheroes.
(now true, that could be said of Guardians of the Galaxy too, but I think that's an exception to the rule because GOTG was awesome).
IMO Agents of Shield is a bit like instead of making a show about the Avengers, making a show about the people who do the Avenger's tech support and dry cleaning.
The DC shows are just so much more watchable.
I saw the A of S finale, yawn ! The mid-season finales for Flash, Gotham and Arrow were fantastic, any one of them was more exciting and enjoyable.
I mean Gotham has actually made the Penguin a credibly menacing and interesting villain - which is a pretty big task, as he's generally the joke of Batman's rogues gallery - on that note Captain Cold ! Another somewhat lame villain but done really well in the TV show !
Sure, Constantine's not great, but the other shows are fan-tastic.
Sorry Marvel fans, that's just my opinion. If you enjoy the adventures
of Phil and a bunch of no-names, up against real class-A bad guys
like .....Calvin Szabo (Mr Hyde), well that's totally cool. I'm not being
dismissive here, if you really enjoy that, more power to you - I just
don't see Whedon's usual magic rubbing of on A of S (and I LOVED
Firefly !). It's not a bad show, I just don't find it exciting.
Although having said that, I did like A of S's take on the Absorbing Man (a great Marvel villain, who didn't get the best treatment in Ang Lee's Hulk, nice to see Crusher Creel making an appearance at last).
So, in short maybe DC/WB have realised that for the next little while its films
are struggling against Marvel, and aren't betting the farm on Batman v Superman - instead they're getting saturation by absolutely dominating the TV airwaves with really enjoyable shows. Well, that's how it looks to me, and I don't see that as them shooting themselves in the foot.
Of course, I don't have the numbers to back that up, it's just an impression.
Cheers.