#1 To enhance the value of the WWE Championship
Let's consider the Clash of Champions card for a minute, ladies and gentlemen. Roman Reigns vs. Erick Rowan should have been a match that should have preceded the WWE Championship match since no title was on the line but it was the co-main event of the whole pay-per-view.
And this has been a running theme from the start. Even when AJ Styles was the WWE Champion, his matches would precede the Universal Championship match and sometimes, even be smack dab in the middle of the card. But anything Brock Lesnar does is a big deal and he can elevate the value of the title quite significantly indeed.
This is much needed because the WWE Championship, by definition, should be the most important thing in the company. Brock Lesnar can make it happen, because of his appeal.
Do you want to see him as the WWE Champion?