>>roflye+(OP)
In my experience, it is a serious problem when product people do not understand how their product actually works, even when treated as a black box with observable external behaviors and interfaces.
>>butler+DY
They knew how the product worked (they used the product) they just did not interact with devs - so they didn't really get the implementation. Their only opinions there were formed from leadership who was very biased with what they wanted to express.