They're being careful about testing new features thoroughly, since any misstep will earn them tens of millions of angry players and tons of news articles, and feature pieces on half the local TV news broadcasts across the country, so, yeah, new features are hard to implement.
But... why complain about Pidgeys? They're the Soylent Green of the Pokémon world - catch just 4 and you'll have enough candies (after transferring a few) to evolve one - and evolving is the fastest way to get XP, to level up.