All sounds legit to me.
I hate tournaments where I have to play against a whole Grey Tide army! Or models are primed black with white shoulder pads and red eyes! Specially Orks painted like that....
To many times have I had models that confuse me on to what they are.. "Now what is that again? You mean those are Plague Bearers?!? Why do they look like Zombies?!"
Its a GW event... its always been No proxies or can't use non-gw models. (no change there only issue is models not made by GW i.e. Dark Eldar Fighter jet or when Thunderwolves didn't exist) But hey I'll take that over the Brood Lord Coke can any day!!!
Finally the whole "Oh wait sorry that's really a plasma gun or X weapon not a flamer" good to see that go to.
If you play in tournaments these rules shouldn't be any thing new at all.
And it injects a lot of fun into the game. Gives some armies that have been stuck in the mud a little while a boost... Chaos Marines should be loving life finally now that they can use the Large Lord of War Daemons now! Space Wolves finally have access to some good Anti-Air and fliers. Imperial Guard really can "Crush their enemies under their tank treads" Dark Eldar finally have access to titan killer weapons.
Love what they are doing!!!