I don't understand the 'demotivating and frustrating' part when its a mutual decision of two or more players if they want to tie, and thats what happened last Halloween Event. No one's forcing anyone to tie.
Unfair and no competition? Do you think those who tie didn't grind for their spot on LB? And if you really want to get to leaderboard then just simply score/grind more than them its that simple.
Coordination with each other is a problem now? How about Gauntlet then? I don't really see anyone else having problem with it, are you affected by it by anyway? Have you even run for leaderboards multiple times?
And calling other players "evil" sure is the best way for you to play the game huh