"It's not what we like."
St George Illawarra playmaker Benji Marshall said he could see where Robinson was coming from, but estimated the Dragons had stayed down "probably up to 12 times" in their six games this season in the hope of winning a penalty.
"In the heat of the battle, a lot of games are won off the back of momentum and all it takes is one penalty out of your half to make your way down the other end to give yourself a chance at scoring," Marshall said on Fox Sports' NRL 360.
"And if you get hit in the nose and they miss it, well the rule is they can't make contact with the head.
"So why not just stay down until the refs go up and have a look?"
Ennis, Canterbury's long-time skipper who fans regard as captain pest, acknowledged there was nothing illegal in staying down, but said such antics were a stain on the game.
"There's no doubt that there would be people out there saying I shouldn't comment on it because I've stayed down at times before too," Ennis said.
"But if that's removed, then it won't happen and, yeah, I'd like to see it removed ...
"As Trent Robinson said, if [a tackle] is deemed high and the referees do miss it, then you're going to get found out later anyway."
AAP