Me, I play with friends in my home.
One of the relatively few disadvantages of gaming through a
D&D not-quite-Meetup site is that I don't have that luxury. We of course try our best to vet people before they join games, and if there was anyone we thought would react badly then they would be ejected fairly promptly.
But the sad truth is that there's what I believe to be the case, and there's what I
know. And until that first PC death, I didn't know how it would go down. (Turned out that the response was that we now have a "Wall of the Fallen", in which dead PCs from campaign play are given obituaries by their GMs, and are thus immortalised. So that's good.)
The other sad fact is that, given the opportunity to fudge that die roll to save the PC, I probably would have. Certainly, a few years back I would have without hesitation. But we've since discussed the event, and a few of the players (including the player in question) have said that they actually like that PCs can die. So, yeah, that's good.
But, again, that's purely a matter of what works for me. I don't claim that it's 'better', nor even that it would work for anyone else. This is most certainly an area where YMMV.