Alex
The paint in the back of our forged irons, does suffer from wear and tear.
Over time it will scuff and chip as your irons knock together in the bag.
Our forged irons are soft and therefore do age more visibly than harder cast irons which are durable and resiliant.
The forged irons can dent, mark, rust and suffer from paint scrapes. Unfortunately it is a trade off from the feel, softness and precision that they deliver on the golf course.
Some golfers like the fact that forged irons age. Others don't.
We try to stress that our forged irons will mark over time on the care tag that is displayed with each set.
Hopefully now that you know the set is fully chromed underneath, you'll be happier that the build and play quality is not affected.
You're right that an option is to eliminate paint altogether, but most golfers prefer the look as it is, even with the wear and tear.
Hopefully the look will grow on you.
Thanks,
David - Mizuno