It's a single player game, you decide what you do, or if you call something 'legit' or not.
I'd question the point of playing if you power level your skills or use those exploits, but if you enjoy it, do it.
I like to play with 100hp, only upgrade magicka, no items, no fast travel, and saving only at a bed. I like to view grinding as training i.e. you go into the mountains for ___ days to train. Even with two storm atronachs I still keep dying cause the archers don't switch targets to the atronachs, and if they do they switch back to me so even with the exploits the game is still very challenging for me.