I 'm not trying to accuse you of naivety, but think about it for a moment.
They only air complaints for which they can usually trot on a "suit" (with no doubt at least a week or maybe more to prepare their answers) to say "we're right and the viewers wrong."
They are completely "even handed" over letters, including an even number of those of "mild criticism and of effusive praise."
I suppose it's the luck of the draw that the complainants
letters, are often read out by someone who sound as if they are in their dotage.
It's been like that for over twenty years.
How many times over those years, have they said they'll sort out the problem with over-loud, unnecessary, or inappropriate music and the same topic comes up, time and time again on here?
Today, they demonstrated an example of loud music, made a fatuous excuse for it and said they'll sort it, but unfortunately many of the BBC programme makers won't take any notice of the "suits," never have.
Don't hold your breath!