That's a moot point. When in a non-disclosure agreement with a company, the binding part is that one will not divulge information about the company or potential partners. If one doesn't know if the company is a partner or not, they still can't divulge the information. If you've ever worked for one of these on-demand consulting firms, they go over this in detail. Basically, if a company tells me something on the call, and that includes information about another company, I can't tell a third party about it, nor can I mention it to the other company.
It is very likely Zoom and Okta are partners. Companies are constantly "partnering" with each other and all that means is there likely some agreement somewhere between them to not divulge information.
I think it's pretty clear the poster figured out they were in legal jeopardy, or were worried about it, given the content is now gone.