And Beast Boy...inexplicably just stops doing that even though it was effective. Trigon just sits there uselessly flailing around in agony until Beast Boy decides to leave of his own accord. In video games, you keep doing what works until it stops working...in shows and movies, a character doing that to resolve every situation gets repetitive and boring awfully quickly, even if it makes the character seem stupid when they stop. Similarly, a character using one of their abilities in an unexpected way to resolve a problem can either be great or completely stupid, depending on the drama of the situation, how well it was or wasn't set up, how cool or funny it is, and probably a variety of other factors.
Look at this nonsense I found in Atom Eve's Invincible wiki entry, under "weaknesses":
And noted right next to it...
In effect, the typical "we gave this character too powerful of an ability" combined with "so we're going to put an artificial limit on it" topped off with "but actually she can bypass it...but only when we want her to" nonsense. Is it better than not addressing it at all? Maybe, maybe not...addressing it kind of just draws more attention to how stupid it is, so maybe it's better to just not. She changes a textbook into something else entirely different and then right back again, with the textbook having completely resumed its previous form so that it can still be read, so I guess her ability to instantly analyze, memorize, and change reality is literally just about perfect, which makes her powers seem even dumber. This is precisely why I try not to think about this, it really doesn't matter and it's all a load of nonsense. I only care about something like this is if there isn't other things that I like about what I'm watching to distract me from thinking about it, which if it's not accomplishing, is usually a sign I should just stop watching.