Cherry picking and taking out of context unsourced comments from a whole two players you think agree with you who played decades ago in a different era doesn't prove anything you're saying. That's called searching for somebody who agrees with your position and making an appeal to false authority, instead of making sure your position is correct.
How would they have any idea how the opposition is feeling in the first place? Are they saying that they personally played hard against star players until they "snapped", and then they just let them have all the time and space they wanted? Doesn't sound much like them, or anybody. Matthews "snapped" last year and it did a whole lot of nothing except make the team worse for a couple games because he was suspended.
Regardless, "snapping once in a while" doesn't mean "snapping every single time because I want it" anyway. A minor scrum at the end of a nothing 5-2 game in November isn't the time to "snap". Matthews did not disengage from a scrum. He was engaged in the scrum, gave the guy a bunch of cross checks, and then his teammates came rushing in to have his back, so their reigning Hart trophy winner didn't have to fight. Nothing wrong or unusual about that. It's called people playing their role.
We do have the correct personnel to protect our stars. It was handled perfectly fine.