FWIW, the standard library being stuck in the K&R era is an actual problem since it doesn't make use of more modern language features and some functions are downright footgun magnets, but nobody quite agrees what a modern stdlib should look like, so a stdlib2 probably will never happen.
Yesterday I would have agreed that C is a nice and simple language, today I believe it is a cursed one that we just happen to make work somehow.
Of course nobody forces me to use C, which is why I stopped writing C a few years ago.