The easy money has been made.
The newness of online, the number of fish was once large. Now that it has matured, there are more tricky games(turbo, etc) to try to lure in players to the "new" thing.
It is regression to the norm. Real players will like the version they excel at.
Success in poker requires luck and skill. There was a time when skill-heavy players had an advantage, but the rest of the field keeps improving, so the advantage isn't so large now.