Local SERPs that remove almost all need for a website. Then local SERPs, which have been getting more and more aggressively tuned so that you never need to click the website, and, in fact, Google has made it harder and harder to find the website in both mobile and desktop versions of local searches. So if you search for Thai restaurant and you try and find the website of the Thai restaurant you're interested in, as opposed to just information about them in Google's local pack, that's frustratingly difficult. They are making those more and more aggressive and putting them more forward in the results.
RankBrain can have an impact on your keywords campaigns. When you are defining your keywords, you are looking for relevant terms that respond to customers queries. This is how a successful SEO strategy works. And logically, if you are picking keywords your audience is not searching for, you campaign will have no chance to succeed. This is where RankBrain can play a role.