One key takeaway from that interview:
"We don't think that the codec currently is the limitation of audio quality on Bluetooth products."
Is it not at least conceivable that lossless audio will not deliver an appreciably better sound quality for in-ear headphones? I am absolutely convinced that Apple have the technical chops to pull this off if they want to, and also I am sure they will have this working in the lab.
How convinced are you that this goal you persist with demanding is actually worth achieving? I suspect you want it simply because it is technically better than what we have already, but maybe what we already have is plenty good enough for the purpose.
Why not perform some blind testing to see if it makes an appreciable difference to people's enjoyment of music if they are listening to lossless audio? Pursuit of the ultimate is often to pursue an unachievable goal, and surprisingly often does not deliver the result that is expected.
What's more, I wonder whether there is such a thing as the ultimate in sound reproduction - there is always going to be more that can be done because any recorded sound is only ever at best a facsimile of the original performance. It is unlikely that listening to a recording can ever actually reproduce the original accurately.
In my view the question should really be "What's good enough" coupled with "Is it enjoyable to listen to". You may find that what we have already meets those two criteria more than adequately.