That issue was set down in 1776, but clearly not settled.
Per this couple, having an FFL obligates the holder (or agent thereof) to prohibit straw purchases. Anything this couple said to indicate that it was a straw purchase (even wife buying for husband) would have put the seller in legal jeopardy, if they completed the sale. Spousel straw purchases are tricky, as a spouse (or any person) can purcase a firearm as a present, so there must be an indication of circumventing a background check, such as, "Hey, we need to put this through on my wife's name, if you know what I mean."
Sorry, that war was lost and the legislation was passed. Get over it.