Concentration is a bit weird right now to be honest.
I sometimes lose concentration on spells like hunter's mark upon recasting them, without having taken any attack or suffered any damage at all, while other spells will last indefinitely.
I disagree with you that "talk to animals" is only a "fun" spell. It very much allows you to unlock new content and sometimes clues to quest you already have. It's a powerful spell, and an integral part of investigating the world in D&D. It also forces devs to create lines of DUBBED dialog for almost every single creature that the player is bound to come across, which must be a pain in the neck to implement, when you think about it.
So, yeah. I don't think removing the concentration aspect of such spells is the thing to do, but concentration certainly needs some work still.
