Answer: I would say this is an example of an uninviting tone, in my opinion.
Explanation: Not only is the excerpt taking on a more negative approach to storytelling, but when, say, walking into a room and seeing people coiled into their seats, keeping to themselves, most people wouldn't see that as confusing, exciting, or thrilling but uninviting. Nothing about this normally unenergetic and tired pose warrants a stimulating reaction.