Today, 99% of internet traffic goes to a handful of sites/apps, and the vast majority of the ad revenue on the internet goes to a handful ad companies. The internet is a SEO spam shit hole crafted in service of Google's easily gamed ranking algorithms, and designed with the sole purpose of serving ads.
Google effectively owns the internet, and this ruling is a green light for them to take even more. I wouldn't be surprised if they stop releasing Chrome sources and fully ban ad blockers now. The court already ruled that the government can't touch them, even when they've been found to have broken the law.
The only part of that story Google impacts is that their clever way to index results is by mining traffic on their site and the larger web to decide based on user behavior whether their search query was satisfied. Since users can't spend active time on two sites at once, Google consumes a finite resource there. But do we believe Google's behavior tracking really is the final, best form that indexing can possibly take?