Now watch who freaks out and know who the most ignorant users are (if the VGC FF fandom has them like many other sites do). This is something currently being tested in a game which we know to not at all be casual. In fact, it takes more player skill than perhaps any other numbered FF... Albeit probably less obligatory grinding. Tabata has been very keen on talking about the development process. Furthermore, health regen has been a smart mechanic in games like Xenoblade and Deus Ex: Human Revolution. If FFXV were to use it, we would know that the amazing team put much thought and testing into the decision.
On top of all of that, we already know that this game features items, loot, shopping, stat boosters, camping/hotels, and even cooking.