He’s not wrong, just missing context.

In early startup days when you have a small team, maybe 3 to 5 people, a lot of the responsibility, knowledge and access falls on you.

That means you need to be available to solve issues that, yes not joking, only you can in a reasonable amount of time.

As the team grows you delegate more, build redundant systems and processes and then Oliver Brocato becomes wrong.

So, it’s a spectrum, on one the limit, a 1 person company you just can’t take time offline, on the other a big corporation where anyone missing won’t make a difference.