Before this, perhaps some improvement in the tools for diagnosing channel inactive status.

Actually, not improvement, but existence. Given the whole game is channels that there's no way to get ANY information about the reasons a channel is INACTIVE is a glaring oversight.

Highly available bits would definitely demand methods to determine the health of channels and if they aren't available isolate and identify what the reasons are. Currently there doesn't seem to be much one can do but pray.