Seems about right, having a strong audience on X is a business on its own, and it can be quite profitable.
But that doesn't mean it's the only type of business you can make money with.
Day 1 of sharing short lessons from building and selling a SaaS.
Your page can be:
✓ crawlable
✓ indexable
✓ canonical-approved
…and still not be on Google.
If a new page is too similar to what you already have, Google skips it.
“Alternate page with proper canonical tag” = Google sees it, but doesn’t need it yet.