"TPCi, the players want more viable Stage 2 Pokemon instead of EXs all the time"
"Hmmm, better print a card that can search for 3 EX Pokemon for free then."
Sadly I know the reasoning behind it:
"The players want more diversity so that whatever their favorites they can build at least as somewhat competitive deck around them. They no longer want us to favor a particular Stage or Type or even core TCG strategy; some of them prefer strategies other than throwing their decks at their opponent or getting them into a one-sided lock while slowly, tortuously taking the win."
"How do we do that?"
"Well there isn't much we can do until a lot of current stuff is gone. I guess stop making abusively fast, hard-hitting attackers, pacing big, Basic Pokémon so that Evolutions have time to manually Evolve - the short cuts are always overly potent or under-powered - and then make Evolving Pokémon relevant to the game instead of making people wait for the final Stage to do anything. Of course, this will cost a lot more in man hours for game development and testing."
"Keep distracting them with ridiculously fast and powerful decks! Oh, and sparkly, shiny cards!"