Actually, I don't see a problem that other classes can use that scrolls.
There is always more to do for the non-magic classes, especially in the lower levels.
There are quite a few useful scrolls in the game, and since rest will eventually be available much more often than in a typical PnP game, it means that they are not obsolete.
I would treat this as a harmless homebrew like using potions as a bonus action.
