I think just Chris could explain his comment.
The question is how much guys really use DSD. I personally play 44.1 mostly.
Specs for my DAC (not Bryston) don´t mention DSD for SPDIF but I found DSD64 working perfectly.
This is through a homebuilt player using Pi2 and Hifiberry Digi+.
But I like BDP-Pi and hope to buy, depending what European shops will charge.