I can't speak on behalf of anyone but really on y own experience and the people I know.....we just don't have the scene. To me, the has 3 very distinct tournament areas: London, Manchester and Scotland. It's not like the US where the the tournament scene is huge. We're really more of a small group of people within different locations. We rarely stream but when we do, it's more to do with streaming the rest of the EU(see Heart of Gaming) and to the outsiders can seem isolating. WGF was probably the only person to break this barrier with Armshouse, but the place it was being held in had to be shut down.
That being said the community is very tight knit. Tekken and KoF XIII(2012-2014) was huge here in London. Not to mention having close relations with France, Germany and Sweden means we have those types if players coming over. DoA and Smash players keep their scene alive and even the Anime scene.
The problem with the tournament scene is that well, it's not really a tournament place. Th support and turnout just seems to taxing to create. It's more about going to local places and playing there rather than hosting tournaments.
The Majors we have:
Super Versus Battle
Insomonia
Hypespotting
Again, I'm no talking for everyone but that's just how I see th UK/EU.
Electronicdojo.co.uk is the best places for upcoming tournaments. I think this also applies the rest of the EU. Not really a place for constant majors but there are their own country tournaments.
Would people watch if the EU frequent majors?
Well Street Fighter is essentially. Women beating simulation. Kappa
Skullgirls is a game in which women learn to strengthen themselves (Big Band excluded)