Wow,
Didn't see this kind of aversion on health regen in other games, or that it implies you don't have to think about anything else while exploring.
It certainly is a convenience. It's like one more push before having to go back to camp, opposite from having to immediately go there. Didn't expect it to be such a blight on challenge - which I don't think it is.
I think some people are overstating the "challenge" thing. I doubt it'll be so much a greater challenge, as a different one. Rather than managing resources over a signle battle - a short period of time - you're managing them over several battles, and possibly a period of exploration.
That said, I don't know why you keep bringing up going back to camp. From what Bioware have said and shown, you shouldn't be doing so that often. You might well be pushing forward to the next camp in order to restock while progressing, but constant backtracking will in all likelyhood, be a sign that you're playing on too high a difficulty.
And I do think some of the vehement defense actually comes from the fact that you don't get this in other games. We're getting to try something new. We think it could be really enjoyable. And then someone comes in and wants the entire thing removed and a system which, if we liked, we could play in all sorts of other games, put in it's place. If you want a game with health regen while exploring, there are plenty of options. If you want a RPG where your health total is limited while exploring, with no regen and a constrained stock of restoratives, well, you've got DA:I...