A few thoughts:
1) Not sure it qualifies as a "conundrum" any more than the related, broader issue that the sport that magazine covers isn't terribly popular.
2) It would be a more interesting/concerning story if we learned that the best runners in the world - the East Africans - weren't attending. Are their teams significantly diluted? That would be a problem. But it doesn't say. Bad writing. But if the African teams are reasonably strong, I don't know why we'd say the the event is dying because those who can't normally compete with the best (e.g., Hasay, Ritz...at least these days) aren't coming? How is that any different than most outdoor grand prix track meets and major marathons?
3) It sad to see potentially-competitive non-Africans talking themselves out of it. If they want to complain about too many times zones away in China, OK, MAYBE. But other reasons are VERY weak. "Hey, the best runners in the world are competing in the world championships a few time zones away...but I'm not going, because....there aren't enough fans?....it's not an interesting enough course?.....risk of injury? (how many examples of that in anyone's memory?)...
4) Running Times should be embarrassed about a bad story. And perhaps some of these athletes should be a bit embarrassed by their weak arguments. Good for Chris Derrick. Unfortunately, he's far too small a minority.