If anything, this just seems like it's trying very hard to be the definitive Gen I remake. Which, in and of itself, is not a bad idea at all.
The "this pokemon required to challenge a gym" thing, is a bit of a peeve, because even I when I was younger could work that stuff out. For me those strategy guides back then were more for being able to know where I could catch what on my journey and how to best prep for forced battles.
But the sheer elitism that I see in this thread also reminds me of what nearly turned me away from the franchise altogether. The Smogon Smugs, to coin the phrase. The morons who insist that "there's only one way to play it OMGOMGOMGEVERYONEISWRONGEXCEPTFORMEAUUUUUGUH!" people. Yeah, you pricks in particular.
I despised the day/night mechanics in Gen 2. I was blessedly relieved that they were removed in Gen 3... and hated even more that they were back with a vengeance in Gen 4. There is nothing inherently wrong with a simpler experience. So long as it doesn't treat the user/player as an idiot. This was my problem with Detective Pikachu... basically that game would only be fun for anyone that hasn't even heard of or played a single Ace Attorney game. Which is a shame, because it crafted a beautiful world that illustrates the most realistic interpretation, of a world where Pokemon live, play, and work together; and what that would be like. I would be intensely happy if a future main series game took that approach.
Would I say that what we're seeing for Let's go Pikachu/Eevee is perfect and flawless and beautiful in every way? Heck no. But I'm already jaded and know that Tajiri's ego is behind every good (and bad) decision, because he's a tool whose ego and hubris won't let anyone else actually improve upon "his baby". Said ego is why Ash is still the (forced) protagonist of the TV series, and why Ash is still an irredeemable idiot.