That’s not my experience. “not visiting” means that you don’t have your browser open to the site. I agree that the default value for suppress digest email after days might be better at something under 365 days, but there are plenty of sites that I am happy to get summaries for when I don’t visit. It’s just two clicks (from the summary email) to disable summaries, which is faster than wading around to find them as you did.
individual sites can adjust whether and how often summary emails are delivered.