What if the maintainable code has the wrong architecture?
Then it is not maintainable and I fail to se the point in "what if non-maintainable code is not maintainable". In my previous post I emphasized the point that maintainability comes from structure and "the wrong architecture" is hardly good structure.

Have you looked at the code in you car's fuel injection computer? It is probably unmaintainable -I've disassembled a few in my time.
Nothing will loook more non-maintainable than disassembled high level language, just try to compile something you wrote in C a long tome ago and then look at the generated assembly without any reference to the C and I bet you will be totally lost as to what it actually does.

But, rather than labour the point as you have failed to convince no more than one of us of your argument, I think we'll stop right here.
I bid you peace

Erik