Apparently not.
There's almost 0 chance that managers at Apple got the colloquialism wrong and were using it in any sort of sexual or racist way. And if they were, Ashley would have surely brought it to light. This was not a misunderstanding.
What happened here is that Ashley thought the term sounded offensive enough to weaponize, and so she did.
From the Slack reaction emojis, and from our own sibling HN comments, we can tell other people also feel grossed out by the "open kimono" phrase. Particularly people who have never heard it before.
The obvious conclusion is that the phrase just doesn't pass the vibe check in 2021, and no additional research is required. It sounds kind of old and maybe a little racist or sexist, so anyone that uses it needs to be called out, so we can erase this uncomfortable phrase from the tech lexicon. Problem solved?
The real problem is that adopting such a niggardly view of workplace language leads to precisely the type of in-group/out-group division and discrimination that people like Ashley claim to be fighting against. Of course, if it works, she ends up in the in-group with power because she knows the rules. The in-group is then free to exclude other cultures because they're seen as crude or offensive or somehow "less than" the enlightened rule makers of civil society.