I think this is very different to having GCA/garmin as a sponsor of the event.
What about the pile of GCA


Why just mega's? Why is it ok to organise the SA June LWE on GCA?
What if you organise an event with GCA as a sponsor and then get 500+ people in attendance? Does it become a mega?
Any change GCA makes is going to disadvantage Australian cachers in one way or another. The guideline change is clearly aimed a garmin and I doubt it will effect GCA's (little) involvement with mega events.