you'll also only ever attract a very small percentage of the population though. if we want everyone to use nostr this approach ain't gonna work

The old way is way more complicated. People need to keep tracking where their follows are posting to update their pull lists. On this one, you just inform where your posts are, where you want to receive notifications and after that is done and thats it. There is no need to setup which relays you want to use in the app to download posts from. Much easier.