All the details were hashed out in posts here a few weeks ago. I won’t summarize because one side or the other will downvote me, but you can search HN.
I did end up finding Pichai’s email and while it was bland corporate speak, I don’t understand how it was particularly damning. I’m not sure how anyone could expect Google to apologize when they don’t think they are wrong, or especially through a company wide email. If anything it’s a positive that the CEO is taking such interest and spending such energy on this.
https://old.reddit.com/r/MachineLearning/comments/k77sxz/d_t...
Otherwise this search will cover most of the HN debate: https://hn.algolia.com/?q=gebru