Did we move Mom into memory care too soon?

My 67 year old mother has Dementia (undiagnosed but all signs point to it and she is on medication for it). Recently we moved her into assisted living after she asked for us to. She loved the facility and the apartment she was at, was doing fairly well, and was most importantly happy. After a couple months of being there the staff noticed she would wander the halls (my mother has always loved walking) and had a lot of trouble getting dressed, and was starting to show signs of incontinence. Based on these signs they recommended she be moved into their memory care unit. They took her over for several lunches before the move to get her used to it. When we finally told her we wanted to move her there she was all for it. Now after being there for week she hates it!! She notices the other residents are all in great cognitive decline (she is the highest functioning person there) and feels like she has no one to talk to besides the staff. She feels trapped because there is not nearly enough room to walk like she used to. All in all she is miserable and wants to go back to her old room and see her old friends. Did we move her too soon? If after a few months she still hates it, should I move her back? I want her to be safe but I almost feel like her happiness is more important.