It probably works as an economic argument. Readers of this site and many in first world countries have limited barriers to buy new equipment and there are low cost options. Elsewhere that may not be true, either the low cost equipment is still beyond reach, or it is simply difficult to import or completely unavailable.
It's interesting to observe that a 1990 (386) vs 2000 (Pentium III) computer is a heck of a lot different than a 2015 vs 2025 computer. We're talking about Skylake (2015) which would have no issue as a daily driver for quite a lot of people.
It is a logistics issue. People replace perfectly working computers all the time. Sure, if you use Skylake you list performance from Spectre and Meltdown. You may not even be able to run Windows 11 on perfectly working x86-64 machines. But for poor people, power usage may even be more important than for you or me (businesses generally don't care). That Skylake's successors were so terrible is due to Intel and thankfully it allowed AMD and ARM-based SoCs to thrive.
It's interesting to observe that a 1990 (386) vs 2000 (Pentium III) computer is a heck of a lot different than a 2015 vs 2025 computer. We're talking about Skylake (2015) which would have no issue as a daily driver for quite a lot of people.