There is a very large difference between the public statement made by a company about a change in leadership and the private statement made by HR concerning the departure of a former employee. You seem to be confusing the two.Typically, when an executive leaves, the company makes a public statement thanking them for their leadership, even if it was clear that they had screwed up pretty badly.
But that is very different from the statement that the HR department will make if a company calls looking for a reference for a former employee. Due to corporate cya, most HR departments will only say "Joe Blow worked here from 2011 to 2013."
I'm not inferring any meaning behind this statement, other than to say its terseness is curious. I've never met Kim. I've read some allegations, but I have no idea whether they are true or not.