TM-1 was wonderful, so TM-2 should be fantastic. New users will love it, I'm sure. As for the original TM-1 users, they may just have moved on, after the long wait for their favourite features.
Shipping is important.
And every additional year makes your point even more relevant — I can understand, even if it is just subconsciously, that one cannot fit all the things I expect in a 6 or 12 month release cycle. I cannot accept the same for a 60 month cycle, even though I do know that that’s not how software development works (cf. mythical man month, etc.)