I find in general almost all non live action material; be it animation or games, has really corny melodramatic writing as well as voiceovers.
I always tell people I just generally don't like watching animation, and they appear shocked by this.. but it boils down to just feeling like I'm watching a corny play or something. It can be particularly bad when you have adults doing speaking parts in kid voices.. ugh lol
This is awful, i agree.
On the former point, it's true (generally speaking) but i think it's partly because of the limited emotional range animation cen deliver, when it comes to expressing subtle human emotions.
As amazing an animator as you may be, there's no way to replicate the spectrum a live action close up, for example, can deliver, even by rotoscoping every frame (which would look awful) you just don't get there.
This is well understood and accepted though, and you have to look at animation just as another form of artistic abstraction: You look at a Picasso, and don't expect it to convey human emotion the same way a John William Godward does (RIP, lol), but it works on a very different level, nonetheless.
Animation, similarly, should just focus on playing to its own strengths, many of which live action cannot replicate (see
EveryFrameAPanting video on Satoshi Kon for some examples of this).