That's generally the case in tabletop. Moon druids are the shape shifters and land druids are casters. Now whether or not wild shape is good in BG3 seems to be the fault of Larian as they reduced/changed certain features, like your example of not being able to move Moonbeam while shifted. Bears not having multiattack is another.
I said, after the last panel from hell that Larian should go all DOS or 5e. I still stand by it. It's why I won't argue your suggestions as you are suggesting BG3 be more like DOS. I say go all in then. It's this bizarre hybrid that's upsetting both sides of the camp. I won't like BG3 being more like DOS but at least I'll know what I am getting. This wishy washy thing Larian is doing is very frustrating.
Yeah, this is something I want an indication on a clear direction for as well. I would prefer something closer to 5E by sheer principle as this *is* one of the very few turn-based DnD-licensed games because most of the more modern ones are action hybrids or full blown action for whatever reason, but going more towards DOS would at least balance itself out to be an enjoyable experience in other ways for the long term. This middle ground approach is outright failing at this point, and it's just leading to both sides picking things apart and wondering why certain things aren't behaving as they should. It's quite stifling to each other.
