Thing is, SF sound signature is changing. Going from Olympica in 2013 to Nova Olympica 2019 gives some changes in tonal balance in the highs especially. Its more forward now, more energy from 8 khz and upwards without compromize spatial sound.
Having said that, I have never got "foot" playing on Bowers and Wilkins. Maybe tonal is good ,but they have never played music like my Nova 3 does..