You have to first understand that many laws and rules are created to protect the stupid from themselves, and from being taken advantage of by others.
You have the ability to pay a premium for a plate from them if you want, and to get a regular plate if you don't.
No one's forcing you to pay the premium.
The only thing, I think about the guy in question, is that he should be able to get a refund if they pull his custom plate.
I went in and found that the plates I wanted were considered offensive, so what did I do? I didn't buy a custom plate.
If you really want to write something stupid on your vehicle, there are decal kits and painters available.
Not many are seeing the irony of all the whining, and being offended by people, not being able to get anything they want.