Some people like to cheese their build to feel clever. But then again, solving riddles has a similar effect.
Tbh, I don't really get why this is an issue. As a DM I balance the game however feels good for everyone. My main strategy is that being more powerful shouldn't make the game easier but should give you more freedom and options.
And the game should never be too hard. To most people, losing a character sucks really hard, so character deaths should always be consentual.