Actually bare hands ok while working in food production if correctly washed with an antimicrobial agent, and assuming one doesn't pick his nose on the job.

Picking noses presumably isn't a unique problem to bare hand prep, unless the ungloved finger is somehow a more tempting scoop?

I find that picking your nose can be a unconscious thing you do, but the sensation of sticking a glove into your nose quickly makes it very not unconscious very fast

But of course, hopefully the person in question will choose to change the glove.

Otherwise yes, glove wearing dogma is overdone, however still, should probably wear them.