Switching from Google to someone else is extremely easy (I've done it, I don't use Google search). If Google didn't have the best index, we'd see more people do

Switching from Google to someone else is extremely easy (I've done it, I don't use Google search). If Google didn't have the best index, we'd see more people doing that. We might even see people recommending others to change their default search engine to something else to get better results. That isn't what we're seeing. We're seeing people use Google because the results are better.