This I understand. Imagine the crown from the clan league 2k14 being tossed around random guys with 20 bucks in their paypal account.

I know there is a significant difference between those two but the roots stay the same. They are items only given out to the players who won a certain event (TMA,TCL), why should we be able to buy them from the shop.

Otherwise I agree with chesh, that some people may not get into many GM tourneys or arent as skilled as other people.
I fall under that group and I consider it a fair thing to do. (maybe it seems biased, but lemme tell you, I am not craving for some random items to be added to my tori.)