This has been brought up many times. No comments from Larian if they want it that way or when it's going to be fixed. Then again they also gave Rogue's Cunning Action to everyone and DOS has a classless class system so they just might hate D&D's distinctive classes.
It does undermine spellcasting classes and also multiclassing as those classes to get this ability. Fighters with 8 Intelligence vocalizing the spell incantations also does a really good job of making magic seem nothing special in Forgotten Realms. Anyone can be a mage and read that stuff.