Another e.g. of seeing software only in functional terms: the claim that choice of impl language doesn't matter

I've written that IT people have a tendency to look at software only in functional terms: 1, 2 and 3.

Recently I came across a post about this (but not described in these terms) The "Any Competent Programmer" BS

In it, the author comments on the claim that "A professional team can develop quality software whatever the chosen implementation language and toolset."

He says

The claim, though, begs the question of how much it costs, in time and money, to develop that quality software using a chosen language and toolset. And whether a different choice could lead to quality software being developed faster and more cheaply, thereby encouraging the creation of even more quality software.

And he also points out that that claim is analogous to the "Any competent programmer can write good code in any language" trope.