Another thing I spotted.
Bulbasaur got it's standard movelist it's had from the 4th Generation onwards with Take Down at level 15
Pikachu however has a bizarre movelist, not having Thunder Wave (Level 9) which it had from the originals, and then is also missing (Depending on your reference of choice)
Yellow:
Tail Whip (Level 6)
Double Team (Level 15)
Black/White:
Electroball (Level 18)
X/Y and Onwards:
Play Nice (Level 7)
...Are they that committed to being exclusively Gen 1 that they can't even show moves that came after the first generation? I don't know why it's only 3 moves, Thunder Wave really should be there as well.
As silly as it sounds, that stuff just may not be finalized yet. Reminds me of a notiorious example during Omega Ruby / Alpha Sapphire, where we got a screen of Blaziken using Ice Punch. Blaziken doesn't actually learn Ice Punch lol