Is it these, by any chance?
That is super fascinating. I think I may have mentioned my aunt, who never wanted to allow a drummer or classical guitarist into their congregation, and certainly was not mollified any when at one point, the drummer actually "closed his eyes in ecstasy - like Pete Best!" I wanted to say "So, it's okay for someone to play the drums in church... they just have to look like they're miserable?" but that wouldn't have worked, because she never thought it was OK for drums to be played in church in the first place...
As for "hiding" short skirts under a choir robe, doesn't the choir robe then, de facto, become the skirt? (I have some experience with this, as I was so broke in college that when I went up to get my degree, the waistband on my stockings [we wore stockings then] had actually broken, and I didn't have the money or time to buy a new pair. You can probably imagine that I was very glad I was in fact wearing a graduation gown.) Things that make you go "hmmmmm..."
Also, I would have loathed skipping over a printed bulletin, because I'm nobody's fool and would have seen this as a simple attempt to tie people to the pews for unknown amounts of time (like many people, I might not care if my church service was 1, 1.5, or 2 hours long; but I care very much that I know which one of those it is when I sit down).