It makes the verisimilitude of the setting stronger, coherence and internal logic of the game world greater and more divested from the players like you.
You have no idea what old school means and just throwing declaratory statements around means nothing.
Your personal subjective opinions are not truths of the universe and reality.
Try to act and talk/write like a grown up please, since you seem to know "oldschool" you should be old enough, aren't you?
No need to get all butthurt if someone disagrees with your opinion.
No need to attack the person or their knowledge of terms, that is usually a sign that you are out of loical arguments and makes you look childish.
No one is throwing around "declaratory statements", ppl are just voicing their opinions.
"Oldschool" games had no universal ruleset all games subscribed to.
Each game did it differently, some had more features, some had less. Some had more convenience, some had less.
Divinity decided to use some of these features and not others.
For example, fast travel was not a common feature, at least not in the divinity way. If it had, you usually could be attacked during that "fast travel" and u usually healed up.
Please stop that patronizing behavior. Its is you throwing around these statements.