I literally mention the reason in the article in the "Configuration" section (https://yorickpeterse.com/articles/im-returning-my-framework...)...

Yeah, and as others have noted here in the comments, it doesn't make sense.

You don't want bulk, but you chose the bulkiest option. You want a display with more even brightness and colors, but you chose the model intentionally built around a more refresh-performant but uneven display. You either don't care about or didn't bother measuring GPU performance, but you chose the model designed entirely around novel GPU features.

You cite unsourced reports of 13s having anti-properties, but it reads like you didn't research either newer 13s or the 16 at all.