I'm of a similar opinion to yourself, TTK made a lot of good changes and a lot of bad ones. I don't mind going on LFG for nightfall and raids but as primarily a single player guy there is too much time gated fire team stuff. I thought the grind for the exotic sword was woeful, I doubt I'll bother getting the other two. Conversely enough, the times I've been in the crucible while not doing some quest have been a blast. I think destiny will still be my PVP game but I've got zero incentive to grind anymore, still not done gta5, witcher3, MGS5 or fallout4.