How could it possibly be considered a good thing? I've seen dang say before that they've been running into performance issues, and I bet that they'd see a significant drop in resource usage solely by not generating entire comments pages just to throw them away every time anyone votes on a comment. The response is literally not used at all, they're doing that work and sending that data for no reason.
There are multiple downsides and not a single benefit to the current method.
There are multiple downsides and not a single benefit to the current method.