Now I think you're the one missing the point. It doesn't matter what the larger media stuff does, because those are totally different markets with different audiences and demographics. Their success or failure means nothing as far as publishing goes, and anyone in business knows better than to base expectations off of what a totally different format and product are doing. You're building a false equivalency. This is not going to make DC look bad professionally.
What makes them look bad professionally is that the company has let one of their (former) strongest IP's flounder in crap for thirty years. DC looks bad for what the publishing has done, not for what other people in different companies do. I mean, the worst conclusion WB is going to come to is that comic books are a dead/dying market.....which people have believed since before I was born. Seriously, this is not a thing. At most all DC would have to do is point out everything they've done since the 90's; high end creators, no-name creators, classic rosters, original rosters, a mix of the two, different directions with almost every relaunch......the Titans have been in and out of publication since Wolfman left and have never reclaimed their lofty place in the ranks. DC doesn't have to justify a thing to WB, all they have to do is let the market speak for them.
And right now, when it comes to the adult Titans title, they have already been shelved. Have been for months (maybe even a year now? I forget when their last issue hit), and I dunno about anyone else but I haven't heard so much as a rumor of them returning.
The only reason to keep the adult Titans book alive is because it is, typically, a mid-level seller. And being a mid-level seller isn't much protection; tons and tons of IP's can generate similar sales figures.