Yes, and no. That event was well after the Wham-o money dried up (which happened pre-PDGA, really). That particular video is of a final 9 staged after the tournament, so much of the "gallery" were players from the event.
Just wanted to point out that while much of that gallery was players, one of Brent Hambricks' goals in the days of the Columbus Open was to get non-playing spectators out to the course. Introduce them to the sport and help grow it. Sound familiar? Lots of local press leading up to the tourney encouraging people to come out, especially for the final. To that end there were giveaways just for the public that coincided with the build-up to the Final 9. Free mini's, ice cream, etc. There was a public putting contest closed to competitors where the winner got a practice basket. Bleachers were even set up on the edges of 18's fairway.