YES! This has been bothering me for so long. I'm shocked it's taken them this long to iron it out. I hope the device manufacturers implement it soon.

Edit: on second read, I'm not so sure LE Audio will address this issue.

"Multi-Stream Audio will enable the transmission of multiple, independent, synchronized audio streams between an audio source device, such as a smartphone, and one or more audio sink devices."

This sounds like it's referring to stereo or other multichannel audio, not bidirectional. Hopefully I'm wrong.