This.
Consequence management, stray rounds, legal liabilities, untrained persons moving in the field of fire, make a gunfight in my home mostly versions of lose-lose where I can mitigate some of the damage but not all.
Urban combat is different than home defense or repelling home invaders. If only because “urban combat” involves some expectation of collateral damage that’s not acceptable in my home or neighborhood.
MOUT is a good prep that has little application in a civilian, single person engagement.