Would he have been paid if he'd hit big and requested a withdrawal? I think not, it doesn't sit right with me that an accredited casino handle themselves in this way, no flaming the rep as he's the messenger here.
So back to the main question, had he requested a withdrawal, would it have been paid out? Realistically.
A reply concerning this question was received early May following my query. It read:
Regarding your queries when the GamStop exclusion hits your account, you will, of course, be entitled to the balance that you have when the exclusion is set. However, this is something that we practice at Videoslots, we are unable to comment on the actions of others.
But the question is, when exactly is the Gamstop exclusion set? I registered 26th April, but due to technicalities it couldn't be set until some time in May at VS and that was only when I asked a question about it. So in theory, there is no specific date as to when the exclusion could have been set if VS were not in a position to implement it.