Since the beginning, DC's were considered to be just another monster to be prepared for when playing HC. If you can't handle playing like that, then you aren't HC material, and you should either play normal or go play HC in a game like POE where HC deaths result in resurrection in the normal league.
It's a different sort of world on the other side.
Maybe if you'd step over to the other side you'd understand what a disconnect is. It's not what was intended, that's all we are asking for.
It's not the 'monster' we are talking about, it's the 'pink elephant' that Blizzard doesn't want to address. The chat servers recognize disconnects almost instantly, but the game takes up to, and over, 1/2 a minute just to recognize a disconnect
... to then start the 10 second timer.
There has to be a way for the game to better recognize disconnects and give us a legitimate 10 second timer, instead of a minute of auto-death.
This is a legitimate complaint by the entire HC community. You can build to last 10 seconds, but no build in the world will survive for a minute.
Edit: If they can't fix/improve the disconnect detection, instituting an auto pause function would be pretty useless. You'd still be sitting for 30+ seconds before the pause kicked in.