Which would actually cause us to absorb more of the commercials, since we'd be listening to them while doing something else, waiting to hear the program start. I've noticed you can't even adjust the volume while the content warning is playing.
=aw
They used to allow the controls to work during the commercials (volume & FF) but stopped earlier this year.

I agree with others that this is so bad as to backfire on the buyers of the commercials. What really bugs me is that the PA always goes back to the default LOUD!!! volume. I listen at maybe 30% level. I see the seat-belt sign go on and have to yank the ear-buds off to avoid deafness from the inevitable announcement at 90%...