just realized this over the weekend when looking through some videos .
Hadi won the Vancouver open class, not 212. He also won the 212 in Portugal... so I guess it would be his choice to what weight class he is in.

I don't think a special invite would be fair. However I would be OK with "buying" an invite from some one that is injured or retired after qualifying
if someone breaks a leg for example, then they could use the cash, and it would not be like the buyer was just getting in for nothing...
also it could lead to someone that really should not be on that stage, but has a lot of cash ..which could be amusing
just my $.02