I basically agree with Cronk's analysis, but I'm only an outsider and I don't think he knows much about Brooks' play.
I believe that Cronk analyses the game like a bandwagon fan. His analysis boils down to the best teams are really good, the clubs at the top of the table are really well run and players are really good if the team is winning. I suppose it's hard to argue with those points but it feels like it's not so much based on analysis of the game rather than confidently asserting that winners are grinners.
His repeated argument that good players should not go to clubs like the tigers if they want to further their career is one such example. Cronk is the product of a successful club and his experiences don't include developing and turning a club around. So basically in his mind, what's bad must stay bad and what's good is definitely so. But this ignores many players like Matterson, Grant, Leulia, Tapau, Addo-Carr, Koriebate, Tedesco, Moses who earned big contracts elsewhere off the back of being at our club after either being developed by us or struggling at their previous club. Our club does develop players well, we just haven't had success.
Cronk also has no experience of players like Ben Kennedy at Manly, Andrew Johns at Newcastle, Benji Marshall at the Tigers who managed to transform a club and make them successful.
So Cronk basically has a very conservative and narrow view that doesn't include much appreciation of what good players look like on bad teams, or how players can influence and change a culture of a club because he had success on a platter his whole career. He was also a great player and contributed to that platter in a massive way, but if he'd started at a rubbish club, I think he'd have a bit more perspective.
In summary, I don't really care what he thinks, he's just a massive Roosters/Storm fanboy.