That makes tons of sense for rooms where you're in one or two at a time and have to be actively paying attention.

When it's intentionally simple to sit in 50 rooms 95% of the time, it's pretty stupid for a disconnection to make you lose out on random chunks, or for you to miss events because you wanted to turn off your computer.

When you intend to be always in a room, and the only roadblock is the inconveniences of modern tech, the logical state of "inside a room" should be decoupled from "has an active TCP connection". So sure you'd miss what people talk about if you left, but a disruption to your TCP connection would not trigger leaving.