Often the hiring manager will have the person to be hired somewhere in his report chain. So if a person can't effectively communicate and can't properly respond to a "I only have 2 minutes, shoot", then I am getting a future liability into the company that will slow down all future communications.

I much rather prefer someone who needs 3 seconds to triage a question and tell me: "This is X, I know this, here is the solution" or "This is Y, I don't know it, but I will get back to you within 24h".

I do absolutely not want a "Well let's think jointly about this for a couple of minutes". There is no jointly with your boss. Let's do a some math of a 1:12 manager to direct report ratio. That means for every hour you have, your boss only has 5 minutes. And if you talk to your boss' boss, they have 25 seconds for every of your hours.