I've been using Brave as one of my two primary browsers since they launched their developer version back in January or February. The other is Maxthon. (I did a write-up on Maxthon, here).
I definitely agree with your point about bringing a baseball bat to a gun fight. They say that advertisers will get a higher percentage with their payout structure, but that's not necessarily the same advertisers.
Yeah I'm very worried about the development team's ability to tackle such a huge issue. They are dedicated, but few.