The game does indeed feel abandoned.
I was doing that Gree "find droids on different planets" quest thingy and planet populations were around 40-50. This means that I've met two Republic and one Imperial player while doing a quest that takes me to six different planets. I felt really lonely and had it not been for Akaavi to keep me company, I might have called it quits and jumped into the Sarlacc pit.
She's not much company, and the sarlacc probably has more interesting conversation, my condolences.