Yeah, they showed that during the coverage today.
Crucial difference, which naturally no-one wants to admit, is that Warne and Murali both had a million miles to go to become the bowlers they eventually did. Warne, when first picked in Tests, was hopeless - nothing less. Murali was far, far from the finished article. MSP, on the other hand, can make little improvement - he's already bowled as well as he's ever going to be able to bowl any number of times. Obviously, it'd be nice if sometime in future he didn't waste spin-friendly conditions like he did at Mohali in his 2nd Test and at Kandy in his 2nd-to-last as of this post. So that's one hope for improvement. But even there, no-one can bowl well in every game.
Other than that, anyone expecting him to do a great deal more than what he's done to date is going to be disappointed, as I've said several times. Unlike Warne and Murali, he was already something close to the finished article at 23-24. That in itself makes him unusual as a spinner, and for it he deserves great credit. But it will mean his career will contain little of the in-progress-improvement we see so much of.