#2 It is just WWE living to the tag - 'Anything can happen here in WWE'
Off late, WWE has tried their best to be unpredictable. This unpredictability has been visible by the booking since WrestleMania 34.
WWE ended Asuka's streak at WrestleMania, Brock Lesnar once again became the Universal Champion, Daniel Bryan turned heel and became the WWE Champion, and even at Survivor Series, Charlotte Flair turned heel by beating down the RAW Women's Champion Ronda Rousey.
The clean sweep is one such thing, as this is something nobody would have ever predicted at the start of the show.
It is good to see WWE trying to be unpredictable, but in the process, some of their major wrestlers lose credibility. Nakamura, Samoa Joe, Braun Strowman, and Finn Balor are few of the many who have been lost in the shuffle with WWE trying to be unpredictable.