My friendship group is largely diversified by having "graduated" the friendships from knowing them online to meeting them in person, or meeting people at festivals. So, maybe I appreciate workplace diversity less in that aspect.
If it's a common vector for one to diversify their environment, then it might be boon.
I do think the way it's currently done is a bit... Shallow, lazy? For lack of a better analogy, it reminds me of a fad diet. But that's not really a constructive criticism on the topic, since I don't know what we should do better either