You simply cannot make such a snap judgment to say that he is not in the top 4 or 5 bowlers in the world. Perhaps it is a snap judgment to say that he definitely is. The point is that the skills he displayed on the series combined with a superb First Class career show that, within Sri Lanka, he is the second best, or perhaps currently, the best, bowler within Sri Lankan soil. How he performs outside Sri Lanka will of course be the ultimate decider, but it is key that he is not a bowler reliant on spin, despite having a heavy spinning off break, he is more reliant on subtle variations in pace and drift (two things which has been endlessly neglected by the media despite being major weapons for bat pads) and the one that straightens ever so slightly.
It is no doubt primarily a talent assessment, rather than a statistical assessment, and this many may vehemently object to, but I think that it is a fair talent assessment.
manee added 2 Minutes and 19 Seconds later...
You cannot compare one good Test to three comprising on of the most impressive series performances of all time. Moreover, as I have stated below, it is certainly a talent assessment rather than a primarily statistical one.
manee added 0 Minutes and 44 Seconds later...
But we have seen him bowl, and he is far more skill than novelty.