I think the end conclusion wasn’t great. He said
It wouldn’t matter if it dropped 20 degrees
It absolutely would matter. Just like how a 4090 costs an absurdly high amount but people will still buy it. For the right person getting 20 degrees knocked off might be worthwhile regardless of how expensive it is.
I still occasionally run across the odd dodgy website that tried to disable zooming (along with other oddities like trying to disable right clicking on desktop) and it feels honestly that most of these annoyances come about because some asshole in the company (the CEO, lead designer, marketer, whatever) sees any changes to their websites from the user as “ruining the experience”, disregarding the whole concept of accessibility in the modern web