I mean I haven't been tracking the discussions post for post but as far as the discussion on meritorious children's movies like, say, Toy Story and the Ghibli movies, obviously that's proof that it's possible to reach a higher standard. But those movies stick out because they're exceptional.
There's always going to be a market for movies targeted for children, would it be nice if there was more value than cheap laughs, loud noises, and flashy visuals but if a kid doesn't need that to be entertained it's not the end of the world.
With respect to the critics, I don't think there's anything wrong with them concluding that this movie is shallow and lacking substance, but it's getting pretty low scores for that. From what I'm gathering, having not seen it, it seems like this is an unexceptional and run of the mill kids movie. I don't think that merits 1-4 scores that skew the aggregate to make it look like it's a piece of shit that people should stay away from.