It is super possible to get lagged, blinded, and disarmed all without being able to even enter a draw command. At no point does a single 1h weapon have any advantage over a 2her in this scenario. Monkdude kicks dirt in your eyes, lands a chakera or even back to back rounds with chakeras, dragon disarms your cursed main hander.... are you sure you want just a dagger over that polearm? Losing the automatic draw of your two hander, I don't care if you'd RATHER be in a dual wield stance, while you are blind can be fatal. At no point is a single one handed weapon the right answer.