Agreed. It's already been noted that the position of the shooting was a final barrier to Congressional reps. Who those reps are remains unknown, but it would surprise me if it was McCarthy back there screaming on his phone to Trump.
The embarrassment of Babbitt being shot to protect him would be a main reason to be against an investigation. I love irony.
I think it would have been very easy for that officer to have been equipped with devices that could have held her back in a non-lethal way.