Should I revert my game after killing

Spoilers for Act 3

Raphael in Sharess’ Caress in Wyrm’s Crossing

? I was able to throw them off the balcony with several shoves, dealing ~1100 damage (and only granting 65 XP).

Because the game keeps teleporting you out and never technically entered combat, I’m guessing they weren’t supposed to be killed here. Some quick google searches suggest they’re supposed to appear later on too - will this break my game at all or is it safe to continue with this save file?