It's not meant as an argument, but as an illustration: people who I respect more than the author of TFA, and whose skill and accomplishments I've witnessed first hand, weren't eager to upgrade from tiny screens. It's not that they would've refused a better screen if given one, it's just that they didn't ask for it and it wasn't a pressing issue. Indeed, for them it was not "time to upgrade the monitor".

It taught me the valuable lesson that creating software, to them, was mostly about thinking, not about the gadgets you use to write it down.

Like another commenter said, it seems gadgets work as proxies for talent for some developers -- "you should use a mechanical keyboard and a 5K three-monitor setup, like real hackers do" -- because actual talent is harder to gain and demonstrate. A sort of cargo culting by accumulating tech gadgets.