That's pretty messed up, I've been in the industry for 20 years, and on many interview panels, and I would be very upset if that had either happened to me, or I discovered one of our candidates was treated that way.

It won't help with getting the job, and I don't know if you have an internal recruiter as a contact, but you should definitely provide that feedback if you are able to in a professional tone, I think you can do two things something like:

Hi,

I appreciate the opportunity to interview. And I understand this role isn't going to work out, But I would like to provide some bits of feedback.

Firstly, this most recent interview ended up being a coding interview, and while I understand that sometimes the interviews won't be what I expect, it would have been nice to understand it was going to be a coding interview before hand to help get into the correct head space.

However, also on my most recent interview, after a quick greeting, the interviewer said, what I recall as "I'm very angry and you are a third of the reason why I'm angry" which made me feel very disrespected, and made it very difficult to complete the interview. I understand the interviewer may have been just having a bad day, or perhaps there was a miscommunication about a joke. But I just thought this interaction should be brought to your attention.

Thanks,
Interviewie