It has proper "old school" JRPG dungeons, with random encounters, save points, and they don't give you free heals when you level up or reach the save point. They talked about the importance of resource management during the Q&A. It's definitely not going to make everyone happy.
Back when they first showed some gameplay clips of the player walking and getting into a battle, I saw numerous people say random encounters were a deal breaker for them.