Even non-cartoony, somewhat serious games do it.
Horizon Zero Dawn does it. Even has a few spots where you’re supposed to jump semi-blindly into dark pits because you can vaguely see a body of water deep down.
Even ignoring the fact that anyone but a olympic-level diver would just crash against the surface and die horribly, has Aloy considered that for all she knows it could be a 10cm deep puddle?
And then they become popular so fast and so effortlessly they don’t care about actually creating anything anymore, so people fix that by feeding them their own music from the original timeline.