Wow, 11,000 lumens is up there. But "too bright"? You might know that answer better than us. When I used to live in a more rural area outside of Mansfield Ohio, there were no streetlights out there. It was DARK at night. I'd have one of these if it existed back then. Now that I live in the suburbs of Indy, we have streetlights and sidewalks and people have really bright porch lights. So I'm more worried about *being* seen, than I am about seeing.
I would guess it could be as much a danger to blind an oncoming driver who is unprepared, than it might be to have a dim headlight. Speaking of which, is there a way to dim some of these if you have to?