Sadly for you, I am the organiser of a parkrun and I can assure you that at no point has it ever been promoted as a race. Because it isn't.
All chips are created equal, they're just numbered. There are no podiums, nobody waits around to applaud those who have finished quickly. Generally what happens (I am involved with another six in the region) is that the quicker finishers leave and the others wait around socialising.
Chips are not ranked, they're numbered.
Rik won nothing. He might think he has, but he hasn't. All he's doing with that weird humble-brag is promoting his business. He didn't get a trophy for his "achievement".
3 of the 7 parkruns I'm involved with have generated jobs because, after discussions with the relevant local authorities, visitor centres with their accompanying cafes have been allowed to open earlier.
I have no idea why parkies have installed permanent markers at some runs, that shouldn't have happened. Again, it's against the ethos of parkrun. You can register your complaint here:
https://docs.google.com/document/d/1h6TROpK30y4OGuHndvAOD58X-X89ySwmPxTwV7CsCG0/edit
parkrun gets "latitutde" as you call it (although I'm not sure why) because it is a proven method of getting people to exercise, generally just out and about or involved in their local community.
It's simple, effective and cheap.
And it doesn't take over public parks. How many public parks do you see busy at 9am on a Saturday morning? One of the ones I'm involved with isn't even in a park, it's on a shared use path, and there have been zero complaints about it.
To hopefully get back on topic, there are all kinds of reasons why ParkRide is a lot trickier. Distance, space, equipment and insurance are the most obvious.