Very true, gotta love economics/game theory. Though you bring up a point I'm hearing a lot here. The idea that Survival mode is supposed to be some sort of SUPER HARD mode. But to quote Todd
" It’s a different experience. We’re not trying to make it a ton harder. It’s harder because you’re doing more things. We want the combat to feel different, as opposed to just being a bullet sponge. "
So it might not be intended as any sort of hardcoe mode, but just a very different experience.
I do have to disagree with you about basing any decisions on a Poll. How else will they get an idea of what players want? They could read every thread, or try to get the jist of each. Polls simplify it. I find it REALLY interesting that at this point, the 2 options are very close. 42% yes to 57# no. While that seems to say that more people prefer the "no" option, it also shows that there's a decent sized group that wants the "yes" option.
Because it doesn't really work for any reason you'd want to frequently save. Lets say saving gets locked to sleeping but they keep fast travel. Then anytime you want to sleep you might as well just fast travel back to Sanctuary Hills, and sleep/save.
Lets say I'm in the middle of the Institute's Assault on the Brotherhood. I'd need to save at some point before leaving the Institute but that'd be it. I'd be forced to make my way through that entire battle with no saving. And that was a pretty brutal battle. It also wasn't the most strategic battle, few of the ones in Fallout 4 are. The Brotherhood just sends wave after wave of their men at you. That's it. There's no complex dodging, or learning enemies attack patterns.
I don't think that would make the battle any more challenging. Most of the big fights in Fallout 4 can be beaten by simply having enough ammo, and spamming the use of stimpacks.
One other thing I didn't think about before. There's also the issue of any enemy using a Fat Man. I've died quite a few times because I ran into an enemy armed with a Fat Man and didn't know it until I got nuked. So in that scenario, I'd just be randomly screwed without any sort of saves or autosaves to fall back on. How much would it piss you off if you were playing for 2 hours only to open a door and find a Gunner armed with a Fat Man indoors?