Our 4e group visited the Eladrin home town - the amount of mental gymnastics one had to use merely to imagine they could have any sort of society that we'd recognize with that kind of unlimited teleportation was far greater than the amount of work that went into the adventure itself.
Short rests being an hour long means a lot, you could easily get chased halfway around a dungeon or countryside before getting a chance to rest again. It makes the game much more thrilling, and less videogamey.
The great thing about these rules is that they are the default in Basic, thus virtually every adventure will assume such a refresh timer, and that will mean, even if the game isn't as gritty as some of us would like, it's far closer to a classic D&D feeling, makes you feel immersed in the story instead of the story being window dressing in between contrived combat set piece scenarios laid out like improbable bread crumbs towards your Destiny(tm). (as per Kobold press designer's opinions on the new rules).