Lets assume SW/SH has somewhere around 400 available pokemon in game. Putting it about even with OR/AS, and more than sun/moon.
Pokemon bank already exists as somewhere you can manage your pokemon, so you aren't missing out on that. The only thing you are unable to do in SW/SH, is transfer pokemon to the game, once you are already finished with it, to complete any postgame content or battle friends.
Let's be real. The postgame content was pretty awful in Sun/Moon, X/Y, and even Black/White. I'm not particularly optimistic there will be much post game content in SW/SH either. The only real limitation is battling pokemon online, which could easily be implemented in pokemon home.
I don't really need new pokemon models every 2 years, but I have wanted explorable overworld. I have, particularly, wanted a coherent setting, which was really lacking in Black/White and X/Y. If the changes to the pokedex make that more possible, then I am happy.
BW has a compelling story, probably the only one the franchise have had and BW2, as I stated earlier, were Fan-Games at heart, so were HeartGold and SoulSilver, with lots of content and Post-Game options (and not only Post-Game, things like the PokéWood, the Battle Frontier from Platinum or the Pokémon World Tournament were great).
They are giving us nothing. You have to pay for the online, and you have to pay for the bank. Yet, the games don't allow you to transfer your Pokémon, which by itself defies everything Pokémon is at its core since its beginnings. Not even Ruby and Sapphire did that, because you could transfer the mons you were missing from Colosseum, XD, FR or LG.
The old models are the same, so they can add all of them again, no problems. The Nintendo Switch has enough power to run a game with 880 Pokémon, and you don't have to sacrifice anything. Again, make 300 of those Pokémon catchable and the rest transferable. Then make a great Post-Game and demostrate what the Switch (and you as a prestigious company) are capable of.
They are sacrificing everything to gave us nothing, because nothing we've seen yet justifies this.