Doing that for a binary release that is in dozens of platforms, configurations, locales, etc. is incredibly time consuming. Uptake on binaries is also usually on the order of days-weeks before most of your user base is up to date. It's easier for say a website or service that can deploy to millions of users within minutes.

Yeah, I agree for sure. I get tons of updates for spotify, discord, and other applications that don't need to do complex binary distribution