A little bluing from wear on the pressure plate and flywheel is normal, it just happens.
If they're true and not warped, I would just sand the faces a bit to remove the discoloration and wipe the residue off and do the same with the clutch disc and reinstall everything.
A lot of old Harley guys just took their steels and fiber clutch plate and rubbed them on a concrete floor to de-glaze them and put them back in.
Not seeing the parts, it's only my opinion to reuse them after de-glazing them, but just because they're blued does not necessarily mean they need to be replaced.
But about the foot, you can cause some slippage, but I'm sure you would notice it if you were over pushing on the resting clutch pedal. I would be more worried about the throwout bearing as it would be in constant contact in that case and they are not meant to be in use that much.
Good luck with your repairs.
