I checked out a bit of their content and many of them seem to have some sort of accent, might be an unofficial HoloEU gen. The same as the latest HolostarsEN gen has a bunch of SEA talents iirc.
It makes sense to me, the American time slots are already crowded so the only way to comfortably expand without pulling a Niji and cannibalizing existing talent's viewership is to find new time zones. EU makes sense for the EN branch.