I still remember a cartooning event similar to the one you described that I attended when I was a kid which goes to show that it really is an engaging format, both visual and interactive. It is a real shame that the library story time you attended did not come close to the standard set by Dave Hackett. I think some people are just better suited to a performative role and really get something out of it while others try to avoid it or simply don’t put the necessary effort in. I did a prac during my diploma in a public library and they had me run the toddler story time because most of the staff really disliked having to perform and sing whereas I found it to be a welcome break from shelving and loved making the kids laugh. It can be hard to find staff who relish the opportunity rather than seeing it as just another daily task.