You can make a Google search and find almost anything, just because a handful of people claim to have an issue doesn’t mean that there really is one. You can find issues with any service. This point is incredibly overblown. Also if you sign up for premium and it’s still showing you ads you can contact support or cancel it. That said, I’ve had premium for a couple years now and have never seen an ad. I mostly use it because we watch a lot of YouTube on our Roku and there is no way around ads on that without premium.