What are you talking about? Not everything can be fixed with a change of numbers. To give you a few examples: If 1/3 of the moves didn't work what would changing numbers do? If you couldn't leave the starting town what would changing numbers do? If the game would wipe your save games every two weeks, what would changing numbers do? Nothing
They added a whole lot of content that goes way past "a change of numbers". If you think it's as easy as just loading the rom into the game and if you don't think there is any advantage of playing the game as an mmo instead of alone on an emu then why on earth are you on Pokemmo to begin with instead of playing all the pokemon games on an emu by yourself?
To answer your first question: My point is that to think that a reduction of payouts from NPCs of 50% at max even comes close to outweighing the implementation of a whole new region with hundreds of new Pokemon and updating the old regions to gen 5 in terms of value to the game you have to be uneducated enough to think that implementing a new region is little work while nerfing payouts is an irreversible thing that will kill off the whole game.