I just can’t suspend my disbelief about anteaters. It doesn’t make any sense that a mammal that huge can keep its body sustained eating just ants and termites. “Oh but they raid hundreds of nests per day and eat thousands and thousands of them!” Dude, I feel like even you must know you’re reaching here. Come on.
It’s a shame, because the idea is genuinely really cool, a big fluffy guy whose main deal is slurping up insects with its crazy tongue, what’s not to love. But they went too far and felt the need to make that gimmick its ENTIRE food supply, and then it just… doesn’t work! Nobody would be complaining if it ALSO ate some berries or something every once in a while! Your worldbuilding is allowed to have some nuance!
And I guess they tried to address this when they made the aardvark by introducing the aardvark cucumber, which is a special melon-looking fruit that only aardvarks care about and which supplements their mostly insect-based diet. Which… okay to be honest I think that’s a really ham-fisted and dumb solution, but at least it’s something.