First, very cool about Bughunter, I had never even heard of it! It sounds just what I might be looking for, a traveller 2300 type of setting with those types of elements.
Second, kind of a bummer about Tintamar. I think the setting has some potential, but mostly it seems to me that systems and settings have a strong synergy for sales. Not having a strong setting dimension I think could really hamper HARP SF. But I understand the resource limitations and what-not. I think that was one of the really big mistake the previous folks made with HARP, not supporting Cyradon as a showcase the system. Mostly I just have anecdotal evidence, but most of the players I know at my age (40, how did that happen?) really want a more plug and play 'system', with good rule set, setting, and adventures. I know there is always the 'adventures don't sell' problem, but I think they are more like loss-leaders for the rules. But again, I know it just isn't possible to do with the reality at this time, so such is life. I think the work that IS being done is great and hopefully some sales will mean more resources in the future!