I am a little disgusted by this because now both major browser engines are being developed by an advertising company, creating more incentives for future web technologies that strengthen tracking and undermine ad blocking.

From what I understand, this is an anonymized targeted ad company. In other words, ads are still targeted to the individual user, it is just harder for the advertiser to track (or profile) an individual user. Are there any companies still doing untargeted ads, ads where the advertiser might pick what site their ad goes on but cannot target a specific user demographic?