I think the issue here is in the term "sterilize" which people seem to be readily substituting for "sanitize", ""Pastuerize" and "clean".
For the record, I don't do any of these for my orals in suspension. The "inject" "ingest" thing you mentioned.
It's sort of the same thing with all this discussion of air scrubbers and "clean rooms". You could run those airscrubbers in a room for 24 hours but when you walk into the room you just carried in contaminates. Move anything in the room, bump into the wall, scoot a chair and you have airborne contaminants. I would bet I could walk into said room, open an agar plate for 30 seconds and in a week have a plate so gross you'd change your mind quick on this subject.
On the other hand, you can put a proper laminar flow hood in the men's restroom at an outdoor biker rally and have a completely aseptic work area. For the most part anyway.
I would trust vials run though an All American sterilizer in autoclave indicator bags over ones cooked in an oven any day.
I guess it boils down (sorry for the pun) how clean you want to be.
I know you have access to the scrubbers so it makes sense to use them. But for the average guy, the cost of those scrubbers would be better spent on some sort of BSC or laminar flow hood. There are soooo many bad ass ones on eBay under $1,500. You just need to find one close enough to pick up.
Of course now the issue is moving it into your house. It doesn't look to good to nosy neighbors. The problem with having a proper lab for most people is that it ends up looking like...well, a lab.
Hard one to explain to visitors.