The problem isn't Wagstaff and Redhage, the problem is the officiating. This isn't about "who you would rather have on your team". I'd rather have any guy on my team that is going to win me games by gaining an edge, and most of those Perth guys are great competitors adept at gaining any edge they can, all game long.
People are going around citing flopping, grappling, illegal screens, dirty play etc. as if it's the players' fault.
That'd be like if all of a sudden, Redhage and Wagstaff and Martin were allowed to take 4 steps without dribbling instead of two, and then we started blaming THEM for it instead of the party that is allowing it to go on unabated. Yet those same guys are allowed to play with the same amount of contact that they did BEFORE the league / Mal Cooper "crackdown" on illegal contact, while Mika Vukona isn't allowed to play anything approaching "aggressive" defense without being fouled out of a game. Something has gotta give. If you flick through NBL.tv on a given night you will see several different games being officiated as if they were from unaffiliated leagues on the other side of the planet.
It's the officials' fault. That screen happened right in front of that ref and he gave it a thumbs up with the forearm shiver and late step-in in plain view.
Perth get away with it better than any other team because they are better at exploiting the poor officiating, and they are a hell of a basketball program. Also they do it consistently so there is an element of normalisation there for the officials: "oh, that's just how Perth plays. That's just how Damo plays defense, he's a bulldog. Wagstaff is just tough. Redhage is just a pro competitor."
Yes, all true, but also, there is a whole lot of illegal play happening. Good teams find ways to gain an edge, lesser teams don't.