Yea, I suppose to some degree. Scientific American report we annually eat
one to two pounds of live bugs each year for the average American. So smoking them doesn't really give me the Heebie jeebies these days.
Plus we eat live microbes the trillions; so there's that. My guess is they are regulated mostly too the fans, and undersides, not really ever making it too the insides of the flowers; but that's just a hunch. I've got nothing to back it up.
Yea, just noting that your pollen farm in there would be sustainable for raising the good guys long term. I think with alternate species of plants, your likely also at slightly increased risk; possibly. But that those pollens can be leveraged for a very highly beneficial purpose. If you've always got a few of those good guys lurking; they can replicate far faster than the evil mites, so there would be basically zero chance of ever having problems arise in that vein.
Just a thought. I was really impressed when I had them breeding. Cause I had the bad mites for years, and they always returned. Once I had established the good ones, and actually had some pollens to sustain them over the long haul; when they ran out of prey; they somehow managed to completely eradicate the issue. But there a wonderful preventative IMO.