Two reasons already mentioned: multiple opponents with enough health you can't reliably win turn 1,
Outside of the four mob packs, there are no enemies you can't reliably turn 1 lol
And the four mob packs, you kill three of them turn one and the last can't do anything to you.
and camping Vacuum to strip and loot clothing which the game doesn't let you otherwise (doesn't work for any part of the Dark Citadel final encounter unfortunately enough).
I don't want clothing or items. The inventory system in the game is such shit that I wrote a script that'll clear my inventory by modifying the save file rather than having to spam sell bullshit.
Plus if you savescum/corpse run you can potentially beat a much higher level opponent before securing enough stats for the oneshot, the broom is easy to get on the first day.
If you're slow, it takes like, 15 minutes to hit max level. Maybe another 10 minutes to get a money farm online. Usually by the end of the first in-game week I've hit the end of the game's progression.
Further, you're not going to have those spells and spell points on the first day unless you're exploiting/cheating. And if you're going to do that, you might as well just go with the stronger option.
It is not time-efficient by any means, but it functions via a completely different set of interactions so nerfing the OHKO does virtually nothing to stop it despite both being almost equally broken "win in 1 turn" setups. At least the other quirk of mutual defeat always being ruled in your favour doesn't apply to stunlocking.
Combat hasn't meaningfully been iterated on in four years, EXCEPT for nerfing stun locking with flash. If history tells us anything, you're method is going to get nerfed first lol
And mutual defeat isn't a thing beyond the first night's arcane storm.
That won't work for those who pick 'virgin kink' though.
Plus imps may apply transformation potions to your sorry ass.
If you want to end up with a dragon dick or some other similar shit, be my quest.
That's why I said the other option is only worth it if you're willing to let Imps have their way with you lol
I always just go with the brothel spam.