It is usually pretty clear what issues are bugs, and what are the result of cheating. If you teleport past a cutscene at the start of an area, and a later cutscene doesn't proceed normally, I think most people would realize skipping the first cutscene was the issue (unless they were just trying to skip a fight, and didn't realize there was a cutscene) and not report it as a bug.
There wouldn't be a problem with resurrecting a character, since there is a mechanism in game to do that. Having a cheat which lets you do so instantly and/or without a cost could effect game balance, but the game itself would be fine.
Well, only if the cheat code is properly implemented. In one of David's playthroughs they had exactly the case I mentioned: David resurrected his character with a cheat and after that the sceletons didn't attack him because they didn't recognize his correct "state".
Skipping a cutscene is not cheating, it should be possible from the beginning.
