Yeah, I wasn't sure how to not make it sound like that. The relevant bit is that I've at least tried to deal with some of the weird stuff that comes from trying to make aberrations and monstrosities usable to a player.
There's a couple bits you should probably flesh out before you can equate beasts with other monster types: beasts (at least the ones from 1st party books) can't cast spells. You should probably specify how you're balancing spells per wild shape. Some aberrations and monstrosities can inflict long-lasting (or permanent) effects on enemies. At the very least you should probably specific how you're handling.