Regional music is flavour of the decade now in English instrumental music. And rightly so. There never was any such animal as "English traditional music". Just various different kinds of "traditional music in England", quite a different concept altogether. Which is why attempts to define(or invent) an "English style" have been doomed to failure. The country's far too big for that sort of idea. It's also a very bad thing culturally, trying to invent a national norm, which is what Comhaltas was justifiably accused of doing in Ireland.
Let a thousand flowers bloom!
Vive la difference!