Where do you live?
I grew up in New Mexico and tge dry air let me fire a lot, when I moved to the Ozarks the high humidity I found even with spit patches that gun started getting tight after five shots
I live in central Illinois, I actually think the higher humidity helps me shoot without wiping, no scientific proof just my opinion, I blow down the barrel, sometimes one time, sometimes more (just like BPCRS shooters do) and the more times the more it helps keep fouling soft if the atmosphere is dry, also in my opinion.
I do not care if the nervous nannies think it is unsafe, none of their business, I have been doing it for almost 50 years thank you very much and see no reason to stop. I used to win a lot of matches back when I could see so there is that as well.
If it gets a little hard to load, my next spit patch is a little wetter than the previous.
I like the simplicity of powder, patch and ball and refuse to add additional complications (did I wipe enough? what barrel napkins do you use?, what magic fluid do you wipe with?)
BUT I do not tell anyone not to wipe their barrel between shots, that's their business, I am just not going to do it.
YMMV, As Backdraft said your mileage may vary, another way of saying, your results may be different than mine and that is OK, as long as we are both having fun shooting BP we can share the shooting line.
And an edit to get back on topic, never seen a cook off preignition or whatever you want to call it, nor has anyone I know, I will however continue to use a measure to dump powder down the barrel and not direct from the horn.