I emphasize with VAN over what appears to be a misunderstanding and a change in precedent for the rules, and admittedly the HO response time was below expectations. That said, it would have been trivial to inform HO that they would submit a valid roster after signing that FA and request a waiver or extension on that GM task, especially since the approver clearly posted the signing date in the thread.
Idk. Feels like everyone loses here except for the handbook. HO, VAN, and the player get a bad experience on this one. Oh well.