Earlier quoted context omitted.
His point is a job is not UBI, you supposed to contribute in return and adjust your schedule along other workers (aka a 'workday'). I dunno why is that so controversial.
That may apply to yoga class at 11am, but asking for a day off? Come on...
When you tell a Googler they can't take a day off, you are basically telling them the company will not honor a piece of the compensation package they signed up for. You'd better come to that table with a damn good alternative offer.