yes, exactly.I don't think anyone is asking for Qobuz to be added to Tesla Knightshade. At least that is not my understanding. The gripe is the lack of audio input options.
The only path presently to stream external music is a bluetooth link using lossy compressed AAC encoding. If Tesla added a simple analog input anyone could play back their own source from a phone at a much higher quality. Another option would be if they provided a high speed digital input via USB port.
I don't think a preloaded USB stick is really a contender for this discussion. The streaming capability is an essential part of the operation. Also, one would have to own the music before they could copy it to the stick I believe.