Was it a poor idea sure but enforcement would have been simple one employee going going hey the lone doesn't start till 8 if you are in line before 8 you will not be counted and problem solved.
Except if they tell people not to line up, instead, people will just form a massive mob as close as possible to the entrance and then there would be a mad dash to the entrance at 8. Without a line, the event was doomed. They should have created a dedicated space for people to queue and had security posted to prevent line jumping.
What I wonder about was KD so out of touch that they didn't realize that the event would be popular?
My guess is, honestly, yes. KD is really, really bad at engaging with their fanbase and has been for years now. BGW has a bunch of times each year where they have something that draws all of their passionate fans out to the park. It feels like KD never even attempts the same.