I think you had my exact thought process throughout the video. Processed the beginning footage like "Okay I 100% see where this is going, needs a lot of TLC, then it got to the small snippet of Pokémon and I immediately saw SO MUCH POTENTIAL.
Sorry to revive an old thread but out of curiosity, @Soler37, did you ever figure out your issue? Not saying that I am facing this issue. Just curious.
I believe it has something to do with using unlimited stamina when opening the doors at the beginning. It stops a cutscene from happening that gives you the ability to fast travel.
They do exist, however it is not recommended. From personal use, something always goes wrong down the line. Plenty of threads out there regarding these matters.