It seems like the stronger a proponent of progressive ideals you are, the more likely you are to be pilloried for some minor transgression.
(As an aside, this article linked from yours https://www.forbes.com/sites/ruchikatulshyan/2015/01/30/raci... states a correlation between racial, ethnic and gender diversity and company performance. I wonder to what degree this is infuenced by the fact that many high-performing companies are tech companies which now fervently pursue diversity as a goal in itself?)
Relating to your aside, correlation does not imply causation. Is it the diversity making those companies perform better, or better performance leading to the economic resources to pursue diversity programs?
Jonathon Haidt's research shows there are trade-offs between mono-cultures and diverse cultures. Neither is "better" than the other. Each have different traits. As a quick example, diverse groups (on average) are more creative at problem solving than mono-cultures, while mono-cultures (on average) have higher "Moral Cultural Capital" and are thus better at group allegiance and out competing other groups when the tasks are known.
An example from the real world might be that the United States has a more diverse culture and has a lot of creative output in its economy, while China or Japan are mono-cultures and have less creativity but are out competing others when the task undertaken is well known (ie not requiring creative problem solving).
(As an aside, this article linked from yours https://www.forbes.com/sites/ruchikatulshyan/2015/01/30/raci... states a correlation between racial, ethnic and gender diversity and company performance. I wonder to what degree this is infuenced by the fact that many high-performing companies are tech companies which now fervently pursue diversity as a goal in itself?)