We do get more forms as we level up at least.
The real issue is they completely botched the balance between Moon and Land druid's wildshapes. Moon Druid only gets Bear as an exclusive form, but Bear isn't significantly better than Dire Wolf (which should also be Moon exclusive at this level) or Deep Rothe.
It should go:
All Druids: Cat, Giant Badger, Wolf (weaker version of Dire Wolf), Deep Rothe.
Moon Druid Exclusive: Giant Spider, Dire Wolf, Bear.
Raven shouldn't be available until level 8, but Flight isn't that great in BG3 anyway so eh.
Don't get me wrong, Bonus Action Wildshape is great, but only having one unique form for the shapeshifting druid sub-class is pretty disappointing.