I personally would enjoy some bad endings or game overs with the zombies having their way with some of the girls. Not really about the NTR for me, I simply enjoy a little monster on hot girl action.
Eh, in the past threads of AZL and ZR1, there were always folks that commented about that exact element of the game and supported its inclusion, myself included. There's not much excitement or spark about the game when your women are never in jeopardy or danger. IMHO, all three games sorta fall under the same tropes of "scavenge for stuff, find women/events to build your harem, rinse/repeat". It's fun for a while but gets tiring REAL fast, especially given none of the three games' stories are exactly riveting and the gameplay is just "shoot zombies". I also find Scarlett's art to be copy/paste for all three games; even the women's expressions haven't changed from "happy, sad, worried, surprised, angry, horny/wink/lip-bite". While I wouldn't say there's a lack of effort on the dev's part, nor that it's a bad game, I'd say the game is becoming listless and stilted.
I'm also not much for NTR, but I think there needs to be something here that differentiates ZR2 from the other games, or at least vindicates the months-long wait in between updates. Otherwise, this is one of those games where I forget about it, play the newest update when it comes out for an hour or two, then forget about it for another year.