Open the subtitle in the app, Tools – Remove text for hearing impaired – Remove line if UPPERCASE
Yes, I did that and it worked. Did leave some extra stuff behind though, such as <br />.
However in looking at the srt file that br thing doesn't appear. Looking at line 99 on the screenshot shows it, but the srt has now changed to line 84 and no sign of anything but the dialog.
So I think this is a winner. I will check with video file and make sure the changing line numbers doesn't mess anything up.
Looks like you did it, bog!! Awesome find. Will make me want to come here for all my Mac stuff.