They will not do that for simple reason... $$$
Messi will be released as always in different positions in special cards like IF, Champions League, TOTY, TOTS. So we will probably see Messi at ST and RW.
Anyway you can play with full chem with cf Messi or whoever you will use as rw, Just make your starting 11 in different tactic. When game beggins just change it to one you like with D-pad.
I understand you as well. But I know that EA will do nothing about that. They just don't care :P People buying FP, 28% of EA's earnings is from UT.
Position cards are stupid. You can play Messi as CDM with full chem, but no on RW or RM. The same with league chem ect. It should exist only in SBC. On UT I should be able to do my dream team with full chem e.g. something like that But I can't do that because of the stupid rules in game.