Why isn't disconnecting more punished?

Disconnection handling - Our plan, our actions 

Player disconnection is a rampant issue in Dead by Daylight and causes regular frustrations to players. Migrating to Dedicated Servers will give us the opportunity to manage disconnections better. The design for disconnection handling is currently being worked on and we are aiming to launch this feature at the release of dedicated servers. We will share more information on the design itself over the summer. 

Until we migrate on dedicated servers, we are left with the way we have been handling disconnections for over a year; by punishing players that are disconnecting more than a definite threshold (% of the games played). In the last few months, the game has been in a state where we had to be more permissive with that threshold because too many players were experiencing crashes and loading issues and we didn’t want to punish players for issues caused by the game. In the last update, we have fixed most of these issues and our threshold is now back to the initial number. 

In the current state of the game, it will randomly kick survivors from the trial. If you see a survivor DC without any audio indication, that is the game booting the survivor and its happening a lot.

To punish players for what the game is doing could backfire on the devs.

I member hearing somewhere that they'll be able to discern between rage quits and people getting dropped here soon enough.