Diversity is valuable in so far as having diverse skill sets or diverse backgrounds. Not diverse personalities.
There’s no value in putting people who won’t get a long together in a team. Forming a tight bond and shared culture is ideal.
If everyone on a team has the same sort of personality, you run the risk they will all leave at about the same time for the same reasons, if they become dissatisfied.
If you have at least one 10x person with social phobia who hates interviews, then you can at least dump all the work on them.
I failed a personality test once, by which I mean I decided any company that gave a flowchart reading test for all programmers wasn't a "cultural fit" for me.