This is just my take. The stocks in the early days where very garish. The shape is hideous to me- but they work managing recoil. Roy knew a thing or two. Also most that had them could not shoot them due to the recoil. This along with the shooting public still being members of the human race hear one thing, whether true or not and spread the rumour as fact. So somebody bad mouths a point and so it grows.

The MkV I have seen have been crafted very well and leave the bulk of the massed produced rifle behind for quality control and finished quality.