A common misconception. You just move your foot slightly off the clipped in sweet spot and zero clippage occurs. Then pedal as if you were on flats. It only becomes a problem when you forget you are not clipped in!
I found the graunch graunch of cleat on pedal a little disconcerting, and it messes with the finish, but that is true of M324 too. Wearing mtb shoes with cleats on a platform pedal puts my teeth on edge tbh, and can be very very slippery. Got
A520 on the fast tourer/audax bike. Riding on the platform side in mtb shoes (Spesh BG Sport) with cleats (not tired it in road shoes with cleats), especially when pushing off from a stop, is a hair raising experience; your feet just slide straight off the pedal, like ice on teflon,and I've got the scars on my shins to remind me.