If i were a high-quality content creator, and somehow ended up here on steemit, the first thing i noticed was that everything i create here will only earn me revenue for only 7 days

That's because many high quality Content producers can do it everyday, all day long. I do nOT see a problem with this 7 day window. You can either produce the Content on a regular basis or not.

Some are just NOT cut out for this...plain and simple as that . And that's okay