I thought it was quite interesting that he mentioned returning to time limits. That was something that never actually bothered me about Pikmin 1, but a few of my friends who also had the game complained about it, so maybe it was the right decision to remove it in Pikmin 2.
I'm actually kinda hoping that caves get removed for Pikmin 3. They weren't dreadful, but they often went on for far too long and were very samey after you'd seen the first 5 or so. They also removed a lot of the wonder that Pikmin 1 had as well. I much preferred exploring the vast, beautiful outdoor worlds that Pikmin had to offer than the dank, claustrophobic caves that Pikmin 2 had.