Once upon a time I met a very masterful troll who got me to say precisely what I needed to say precisely when I did not want to say it. What he got me to say was:
>Oct 27 06:05:30 <*******> I study the orthodoxy consistently[sic]
>Oct 27 06:05:38 <R0b0t1`> To find its flaws, yes
So did Lennart &co. study the orthodox to learn from its failures? Did they construct a conservative (re)implementation of the software exhibiting those failures? It has been shown and continues to be shown that: no, they are flying by the seat of their pants. A solution could have been constructed which requires far less labor. Not only far less of their labor, but far less labor for everyone else using a *nix. But they did not thoroughly investigate such avenues, even within their reimplementation! They are recreating bugs! It is impossible for them to claim they are doing it over to do it right, as they have already failed at that purpose.
They have been shown to have wasted effort and continue to do so. When labor is scarce, that is the most unethical action one can undertake.