Agree completely.
I think my main quarrel is that "slash chord" nomenclature is often most helpful to (only) the chordal instruments to suggest a specific voicing. For the bassist, it is more valuable (whenever possible) to provide a deeper Harmonic analysis of the slash chord.
For ex. - "B/C". This is really suggesting (strongly, IMO) the sound of a "Cdim,maj7" chord, which I believe is a more complete Harmonic picture and is more useful to a bassist just beginning to decode jazz harmony...(and, possibly), any other melodic instrument that may be improvising.
Or, "F/B", which is strongly suggesting the sound of a "B7,b9,#11".
Conversely, the Bridge to "Naima", begins with "Bmaj7/Bb", and I WOULD write that chord that way.
But that's me...
Thanks for your time and expertise, Hans.