I'm pretty sure i read somewhere (sorry can't remember where), they said something about continuing their work but ignoring most feedbacks. I don't think it's uncommon for H Studios to not even peep when working on projects and only update when releasing patches and fixes.
Are CircleKame's game buggy and unsatisfying? Maybe to some they are, maybe to some they're good the way they are. Difference of opinion will continue to exist in pretty much everything. I personally was disappointed with F4 (Lack of H scenes imo), but i do wish the developer does make a comeback with some stuff. I do hope Arms Devicer S has the same undressing system in Odachi and F4