the only data you need is that it's well known that Shane will play any swinging dick on the planet in a longer race or ahead set and none will play him.
That proves pretty much nothing. A lot of European players don't even gamble. And, not being privy to what negotiations among players and backers have taken place, I don't even know if what you're saying is true.
Based on the record of matches that have actually been played, there's not enough data to support the conclusion that Shane is the best player in the world. He might be. He might not be. What we need is an actual pool tour with meaningful rankings.