Yeah, but the Teen Titans are losers.
As I said, most of the time in crossovers, they get slaughtered, they actually did better this time!
But that begs the question -- and I'm being serious: Haven't comics evolved past the concept of teen heroes and sidekicks and "Teen Titans?"
You said it before, but it was the truth: Risk got his freaking arm torn off by Superboy Prime. Terra III got a hole punched in her chest by Black Adam. And while that could certainly happen to the adults, this isn't the 60s, 70s and 80s anymore.
Again, if storytelling wasn't "grim-and-gritty," I'd be totally fine with a Robin and a Teen Titans, etc.
But it isn't. If Ultraman had been there, he might've flash-fried some of those kids -- and no matter how anyone wants to slice it, they are kids who clearly are outmatched every single time this stuff goes down.