Confirmed.
OP was confusing as it was talking about the mod tools, not the raw roomstate over TMI specifically.
Mod Tools is first party
TMI is again a bug, which we can’t do anything with but try and pass it up the chain, which is best reported to @TwitchSupport/@TwitchDev on the Twitter. But I’ll tag someone whom might be able to take a look
I suppose the real reason it’s not noticed is that no one uses roomstate or change modes often enough to need/want to track status of the room in roomstate anyway