This approach seems like it would put some pretty big limitations on the type of drills you could do during live fire training. Not to mention limiting the types of holsters you could use.I have had my own concerns about striker (Glock ecosystem) carrying that mirror yours.
Part of my rationale for when I do carry one is that if it comes out, I won't be re-holstering it at all. If I draw, it is going to stay in my hand for the duration of whatever caused me to draw. Or at least, I won't be re-holstering it loaded.
Absent that, my plan would be to remove the holster (which has basically 100% coverage of the trigger area), then put the entire holster in the carry position. (Usually RH IWB.)