I think the dev log speaks for itself.
Blitz, Blitz L&L, Blitz LRB....indeed these were over a long period of time and games do change but IMO Blitz 1 was broken, L&L was an entire box of bandaids and the LRB is unrecognizable as a DP9 product. It languishes in some twilight zone of never-right-enough-for-someone and lacks any development-inertia, at least as is visible from outside whatever inner sanctum DP9 has.
TAC still feels right to me and I still love to play it. Maybe DP9 will bless us with The Retro Edition Reboot of TAC but I've sort of lost the urge to hope.