Interesting idea about delaying OKW's - but: OKW's is a tier structure and so can't be placed as far forward as the Major. He can pack up and move or retreat to avoid being artied to death but the truck can't.
I guess that's why OKW get theirs earlier. It's a trade-off for both. Amis have to wait but get more flexible FRP.
Also, you don't think Brit FRP is a problem?
I say remove 'em all!!!!!!!! Punish the blobbers and inf spammers.
For the Brits, i would lock their retreat point ability (not the building itself) til they have bought either hammer or anvil tech. And it would also be a great time to also unlock the OKW's retreat point ability (not the truck itself). Unlock after 3 or 4 trucks are setup ?
The middle game is a better place for FRP. (to my view)