Hi, glad you liked the post.
I had a quick look at that project a few weeks ago and I don't really feel like it offers much different to what's already out there. It was a very quick skim through but as far as I can tell, it's pretty much just "A buys ad space. Publisher displays ad". That's what every ad network does and I don't see what's better about it.
The only difference really is that each publisher has to accept a bid on the ad space and honestly, I think that's much worse than existing models. I would be classed as a publisher on my sites. I have absolutely no desire to waste time clicking on ads I want to display - that should be the job of the ad network.
This will be fairly controversial but I am actually not that fussed either way about decentralization. In the case of ads for example, it puts a lot of responsiblity on the person displaying the ad. What happens if you accept an ad from a site that then changes the target page to display a virus or kiddy porn? That's then your responsibility when a user clicks it from your site. Centraliazation isn't all bad when it means there's a middle man who is legally responsible.
Ultimately what makes BAT good is that it will be the sole advertiser on Brave. My only real worry is whether someone will challenge the legality of blocking ads and then displaying their own ads. I believe the micro-donations will mitigate that problem and I don't know whether it would be viewed as illegal anyway but it's worth noting.