145 pages, wow.
For something I, as a casual player who just plays through the game and that's it, really do not care about at all that's surprising. I do get the reasoning behind people being mad, I just can't recreate feeling like that for myself. To me, always playing with the same Pokémon is boring.
Alas, as long as criticism is constructive, I am fine with it. There just are too many people out there being way too rude about this. In the end, since it doesn't sound they will listen, there is only one out of two things, you can do:
1) Buy the game and see how you like the new competitive play. If that really was part of the reason they did not include all Pokémon that better be good.
2) Don't buy the game. Your wallet speaks the most clear language.