Single Comment

The point you are trying to make escapes me. What the heck do you mean by
'with the latter determinin who moves first'? K + (BN) vs K is a totally
won end-game even on 16x16. With white to move, there are no draws. With
black to move, there are of course always draws when the blck King can
capture an undefended (BN), and it dos not care much if it was a (BN),
(RN) or Q it was capturing...

Some of your other aguments seem to be directed against (BN) and (RN)
occurring only once in the Capablanca (and related) setup. It says nothing
about the pieces per se. You could have said exactly the same thing about
Rook and Bishop being fatally flawed, if you have one of each (like in
Shogi). Or the Knight and the Falcon.

It just doesn't make any sense. So the Cardinal and Marshall are mixed
slider-leaper compounds. So what? You seem to judge pieces by the abstract
symmetries underlying their design. But the rest of the World judges them
for the beauty and marvelous complexity they display in action, when
participating in games. You seem to live on another planet...