No, all of that is still true at most tournaments.
The author's piece is a description of the national circuit, and perhaps of a very few regional circuits that heavily overlap with the national circuit. All of her statistics are for an invite-only championship tournament (TOC) for that national circuit. Note: it's not the national championship, which does exist. It's a championship for competitors in a national circuit.
Most kids attend tournaments close to home. Not only do they not attend the TOC -- they don't even attend a national circuit tournament that would allow them to qualify for the TOC!