#4 The WWE Championship lacks credibility now

Survivor Series 2017, Brock Lesnar beats AJ Styles in what was a pretty one-sided match where AJ Styles was thrown around the ring, he put in some offense, but ultimately a Brock Lesnar F-5 put an end to it.
Survivor Series 2018, Brock Lesnar beats Daniel Bryan in what was a pretty similar match-up to the one that played out with AJ Styles, as once again Brock just toyed with the WWE Champion throughout the match, then put an end to it.
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On a consistent basis if the WWE Champion gets toyed with by the Universal Champion, it does undermine the value of the main prize on SmackDown. To add to it, you compare the stars fighting for the WWE Championship, and compare it with the stars fighting for the Universal Championship, you see what a huge gulf there is between the two.