Ok, so your argument is basically “Look at this unrelated service, that’s how it works too, so nothing wrong with the current service except that I had to do the thing that proves that what you’re talking about would be better.”
Eliminate the central authorities altogether, let people curate their feed so they don’t have to worry about someone else making choices about their experience.
Someone could join Lemmy today and have no idea they’re missing out on a big part of the available content because they joined the wrong instance, they would then turn around and just go back to Reddit where they know everything is available and they’re in control of what they’re subscribed to and what users they want to block.