I haven’t thought about it in a while but the premise of the article rings true. Desktops are overall disposable. Gpu generations are only really significant with new cpu generations. CPUs are the same with real performance needed a new chipset and motherboard. At that point you are replacing the whole system.
Is there a platform that challenges that trend?
Desktops also offer better heat dissipation and peripheral replacements extending the life of the unit. It can be difficult for most folks to replace a laptop display or even battery nowadays frankly.