Having played with the new update stuff for a bit, and since the Nullifier spam was toned down a bit, I've gotten into the groove of the new systems. As usual, they're fixing apace the main broken things and bugs the update introduced and it's all bedding down nicely.
Essentially, I think while the total amount of grind is about the same, I think the part of the grind that's prime part acquisition has been improved. You get more parts more quickly per time you play. I think this will be balanced at the other end by more of a grind to get the relics, but since both prime part acquisition and relic acquisition can now utilize all the maps in the game, that will psychologically ease the grind somewhat.
It was touch and go there for a bit in terms of forum ugly mood - but it was touch and go for a bit with Parkour 2.0, and now almost everyone's happy with that.
Basically, I think DE done good again.
There's a slight worry re. the fact that DE Steve mentioned "marketing pressure" as a factor in why the update was a bit rushed and a bit botched. Could this be the Chicken Overlords' influence starting to bite (Perfect World, the ruiners of Cryptic)? I hope not, and I think probably not, I think DE have demonstrated their commitment to hold the line again and again, and I doubt very much they'd kowtow to any sort of external pressure until and unless they were in bad financial straits, and I don't see that happening any time soon. If I ever see a "lockbox", that will probably be my cue to leave the wonderful world of Warframe, but I doubt that will ever happen. The game just keeps on truckin'.
Great article from PC Gamer on the history of Warframe here.