Some of the shots that they used, definitely didn't help. There were some shots in the trailer that eerily screamed "Look, it's Pokemon Breath of the Wild" and idk if that was a good move to make or not. It's going to depend on how they can pull this off, because it's either going to be a hit or miss I feel. Regardless this is a fantastic move on their part, because once they have everything figured out they can easily improve upon it with future iterations. I'm not expecting this to be Breath of the Wild scale, in fact I'm expecting this to be pretty lackluster. The idea of it is exciting though, because it's something brand new that they haven't experimented with yet. Something fans have been wanting for a long time now.
I too am being more understanding of GF in a situation like this, since it is a drastic change in style for them. I'm willing to forgive and look past some mistakes that they are eventually going to make in this game, especially if it is completely open like it's looking. I can't give them complete leeway though, as because I don't want this to be received poorly because of poor optimization and other issues, and have them be like "Nah, this game flopped. Lets scrap this idea" or think that "hey, people bought and liked this poorly developed game. We can slack off even more". I don't care about the DP remakes, if the people like them great, but I do care greatly about this game getting the criticism it deserves as we see more about it.
If they can take Legends Arceus, and expand upon that idea more and more in the future, Pokemon could see an even bigger boom. Some people dislike open world games, I get it, there is a lot to do, it's easy to get distracted, but they are still some of the most highly anticipated games, because people love getting lost inside of the world. Look how long Skyrim went on, people played that game for years, with it still getting re-released, people still finding new things. It offered a lot in terms of exploration, story, and gameplay, that it was able to keep people coming back and wanting to experience it again and again.
Even taking a look at Breath of the Wild, there are things people can still find out by experimenting, or haven't been, providing a lot to explore. If this is done right, this game could be massive and any future iterations of this game could be huge. Imagine having free reign in a game like this, and like in Breath of the Wild with the dragons, you're exploring and you see Ho-Oh flying overhead like Ash did or you're diving underwater and you see a red glow of eyes in the dark as a Sharpedo darts towards you. Improving on the charging Sharpedos from SwSh. There are so many possibilities that could be done with a game like this, my only concern is if GF is going to be able to actually do any clever ideas and really expand upon this games concept.