Guild Wars 2

This is ridiculous. I spend 30 mins or more in an instance and D/C at the very end. I have to start the entire thing over. Why is the game coded this way? Was there no consideration that server stability could cause users to disconnect while in an instance? It adds a layer of frustration to the story modes.

The latest living story episode has checkpoints so you only go back as far as the checkpoint, which is about as good as it can get.

Retrofitting the old story instances would be amazing, but a lot of potentially quite difficult work ( remember they have to make sure they didn’t break anything else along the way) to do.

I suspect path of fire may have had instances built before this feature was being added to them, considering development apparently started on PoF just after HoT was released.
However going forward I would expect this to be something they try to add to instances created from this point on. Keeping in mind instances may not be created in the order they are presented.

tl;dr:
it’s in the latest instances, and likely to be in any instances created from now on. Which may not include some/all PoF instances due to development timelines.