I know that I might be a bit extreme here but I'd say: live with the consequences of the choices you've made.
Lots of people in this forum talk about how this game is nice because of how similar it is to DnD. Let me ask you, does your dungeon master make you reroll dices or magically roll back in time so that you can choose differently? Higly doubt that...in my opinion it''s as bad as cheating.
Going by some players D&D experience written around the forum to explain why X or Y should be done differently in the game, it looks like many GMs let their players do whatever they want.
But that doesn't really have anything to do with savecumming. And I personally don't mind if others cheat in their singleplayer/lan-coop version of the game. I just don't want the developers to start fudging the dices because some people can't live without every actions saying success.
Save-scumming is a personal decision whether you do it to guard against tech-failure or because you really have intense disagreement with the design of an encounter, it doesn't matter.
But I really don't want the digital die rolls to be fudged.
I mean, it's silly to compare this to a D&D tabletop campaign anyway. Some of us might do Ironman where if we hit a TPK we start over from the beginning of the campaign with a new character. But that's not how things work in a TTRPG. We'd just stop that campaign, likely, maybe we'd make all new characters but they'd have entirely different backstories and enter the world as the previous dead party left it. And I seriously doubt anybody is going to just never play the game again because they died once in one run through.
