Warzone Wednesday cancelled left many fans and participants confused. Although, the answer to the question is more innocent than what people assume. There wasn't any drama, conflict of interests, or teams showing up late.
Warzone Wednesday was countered by a technical error.
Warzone Wednesday Cancelled: Why was the May 20 Event Cancelled
Because of massive server issues, Warzone Wednesday was delayed too much to continue despite the servers being fixed later in the day. Since it's more of a grassroots tournament hosted by Daniel 'KEEMSTAR' Keem, the decision was made to cancel the event until next week.
Warzone Wednesday is a duos competition and runs a 2v2 "kill race" format. So two pairs will queue up together in a Quads lobby, and then split off. The two duos are allies, but are competing against each other for the most kills. The format was popularized in Fortnite.
Call of Duty: Warzone has passed the 60 million registered players limit. In its first day alone, Call of Duty: Warzone had hit six million players, so in seven weeks, it grew exponentially.