I forgot if it was engine limitation or any other reasons for not being implemented, but it was requested many times. "Running" or "Instant Travel" are all suggested things and implemented by Nenad. As you can see he listens, but game engine is not his (Visionaire Studio), so he has limitations to what can be done.
He needs time and/or coworkers for some suggestions, ideas. For example most requested thing was an Android version, it's possible to do, but it requires so much work and time, it's not easy like Ren'Py VNs.
Another example is "running" he added this to AOWD and he needed to make separate animations just for running. That's why he didn't add "running" to EON (his new game), otherwise he had to make several animations for three (four) characters and even more animations for their different outfits. (EON has "Instant Travel")