No, he didn't say that. He said, "Bowers and Wilkins makes some of the best speakers on the plant." Why did you cut out the latter part which clearly implies it is the best there is as I noted?
I made the distinction between "the best" and "some of the best" because it is substantive. The best means number one. Some of the best means top ten, top 50, top 100, who knows? I omitted "on the planet" because it doesn't add semantic content. As far as we know,
all loudspeakers are on the planet. That phrasing does add a gushing tone, but unless we were contemplating some smaller geographic distribution which there is no indication of, doesn't change the preceding: it certainly doesn't change "some of the" into "the" wrt "best".
Now I'm explaining because you asked me why, not because I agree with their contention. I don't. (I have the impression B&W may have made some good loudspeakers around the time or before I was born, but that doesn't apply to any I've actually heard.)
And yes, it is rubbish to say that performance of a speaker depends on the amplifier. If you think there is a "maybe" there then you are not with the program either.
I said "may or may not be" as a qualifier because an amplifier that can't deliver sufficient power into a difficult load will not give the best performance driving a speaker that presents same. I don't know (or care to check) if that's the case with recent B&W but the podcast was talking about treble iirc (my attention was drifting by then) which isn't the same issue.
B&W speakers suffer from directivity error. They have opted for better looks at the expense of audible performance. ...
There is just no away to blend that tiny tweeter relative to he large driver below it. It looks iconic. It sells a lot. But it is not remotely some of the best on the planet.
I think you are right. Weirdly for me the big midrange
looks out of proportion on their recent speakers. Contrasting to the original Nautilus (Dickie's design) where the four drivers and their housings are well proportioned to my eye.