Yes, the training officer testified to that last week IIRC Its the one that the defense intends on recalling as their own witness.
I was rewatching Dr. Toobin tonight too, and this is brought up in cross...
Toobin is talking specifically about hyperventilation in his report... but it indicates that even trained medical doctors have the idea that if you can talk, you can breath and misdiagnose patients. So if trained doctors cannot always see the signs of someone that actually can't breath... I just don't know ...
Around the 13:15 mark