"Honestly, that is a disgraceful decision ... They honestly have no idea," he wrote on Twitter.
Green agreed with the referees' decision however he reinforced his previous criticism that the ruling was a lottery.
"Am I happy on how they're ruling on obstructions? I think we're still not sure about what they're going to come up with," Green said.
"I'm trying to work with (NRL referees boss) Tony Archer and the refs there so we all get on the same page, I think that's what's important there. Everyone just wants to understand it, from a fan's or supporter's point of view."
Green criticised the obstruction call last month after Morgan was denied a try by the bunker in their golden point loss to ladder leaders Brisbane.
Parramatta coach Brad Arthur said he supported the decision to deny Foran because Ma'u had made clear contact with a defender.
- AAP