John,
My system: Mac Mini with Roon Core -> SOtM sMS-200ultra -> Brooklyn
I have the DVD-A edition of The Look of Love (B0001604-19), and I get the same result as you: 23bit/96kHz. Roon reports the file as ALAC 96kHz 24bit 2 channel.
I ripped this record with DVD-Audio Explorer way back ('07).
Same result with When I Look In Your Eyes. DVD audio, catalog B0001286-19. Brooklyn reports 20bit 96 kHz. Roon 24 bit/96 kHz.
Diana Krall - When I Look In Your Eyes [B0001286-19] by Morten T, on Flickr
Strange thing for sure.