The thing that I took away from it (apart from the humanity and thoughtfulness) is the recognition of the tutting in the pews for people 'not doing it right' or even just not being 'right'. I've seen the dirty looks and tuts at people not standing at the right times, at a kid with autism running around the church...Completely obnoxious.
I have hearing problems, I miss a word out of a sentence, someone hits a frequency I'm unable to hear, when I answer the words I've heard, you should see some of the looks I get, I do have hearing aids for both ears, they only adjust the frequencies I don't hear, the point I'm getting to is how little sympathy there is for deafness presumably because you can't see it.
As you say about young annoying children unless you know about these disabilities they could be suffering with, along with their parents, that's all they are, annoying children I find I'm far more forgiving knowing about the unseen element that often goes along with a lot of the complaints you describe.
Regards ippy.