I don't get how anti-remote persons manage to track office workers' performance.
Either you measure output, or you don't.
There are valid arguments against remote work, usually related to communication, but performance measurement? Nah
So you had a management issue rather than a worker issue.
It doesn't matter if a worker is secretly pulling 80 hours or 10 hours a week instead of the 40 (apart from legal/contract issues). If he's doing less than agreed between the parties, that's a problem. If management bought his excuses, then there's a problem with management.
Not meaning to devalue your comment, but this is such a bs excuse from him. Like, I definitely think about solutions to work-related problems outside of work way more times than just during my commute, and I bet that's the case for a lot of people that do any sort of intellectual work (all kinds of engineers, lawyers, researchers, accountants, etc.).
The inability to track actual output levels doesn't go away when everyone is in the office. Instead you promote the person who is best at looking busy instead of the one actually outputting the most work.