Don't forget that Swarb recorded it years ago on his "Rags,Reels and Airs" LP so it's possible that his treatment may have subconsciously influenced one or two fiddlers

Probably did or some but I'd guess this pretty much "everywhere" tune will have reached others by different routes. I may be wrong but good a player as he was, I'm not convinced Swarb was that much an influence outside the English tradition.