At some point, "quick calls" are used for discussions that they don't want a trace of.

So, even in the best "sorry we screwed up" scenario, the quick call covers their butt and let them leeway to backtrack as needed. That's also part of why we viscerally react to opaque meetings IMHO.

oh yes, completely agreed: https://news.ycombinator.com/item?id=45831721