In reality, that is not so much about instances and wether or not to port to them. It is more about how open world content is applied to the setting of the storyline. Something like surroundings of the entrance of an instance should carry a lot of significant story and lore research, should have some community magnificato that settlers can raise, should have some bonus mobster spawn points for killers. Not because the instance is there, but because of the background of why the instance is there. The instance entrance should just be the perk of the main reason for being there, which is the open world content. It should not be the reason itself, and hence not be a reason to force everyone to walk there everytime they do the instance, since they can find other interesting reasons to go if they so choose.