But an army of peasants with guns will be much more capable than an army of peasants with bows. It might not be indomitable, but it'll at least fare better when they don't first have to worry if they can even use the thing effectively, forget if a wizard will block their shots.

But also peasantry will always be more numerous than the rich or powerful. I'll laugh if there's enough wizards to totally invalidate an army of peasants.

Especially considering usually armies of peasants don't rise up when it's only the lowest of the low that are angry. Gotta get that middle class in there, where I assume the vast majority of your easily-deployed and numerous wizards will be.