Interesting! It sounds like we might have attended the same library for our story time experiences. You drew some very similar observations to what I did, and I have to say I’d be curious to know if it’s just this particular library that isn’t very “into” the whole story time thing.
Having run my own impromptu story time at my school last week though I have to say I can understand the temptation to not do songs etc. I HATE singing nursery rhymes ;).