@simon @jscholes @NoahCarver @Iconfactory I haven't tried it personally either, but I was going to email them with some potential ideas how this could work.
One is obviously using audio, more like the charm utility that @talon made a while ago, which used a continuous sound to indicate things like CPU and memory state.
At that point, maybe the usage stats could sit on the dynamic island, and I think that is actually a place where you could have a voiceover label that would read all the information out.
Another way I thought of is if they had a shortcut that you could assign to a voiceover gesture, which as long as the app was running would also speak this information out.
I think that would probably work to make information like this voiceover accessible.
The audio alerts that are in the app could also potentially be combined with spoken alerts with text-to-speech as well. Sorry for the wall text I was dictating.