Kev,
I agree. Matt and I can only guess why those powerful amps were made. We'll never know what Shindo san ( MHRIP ) had in his mind when he designed them.
My experience shows that they can play side by side with very powerful other amps, and while driving speakers loving power or supposed to love high power or current, and they still win by knock out !
I agree that they could be more magical with easier speakers. A pair of SB may be in my future. We never know. But I have to sell the Wilsons first.