That would be a great idea but there is a problem. The game needs to continue making money and that means Rattati has to maintain a balance between focusing on bug fixes and introducing more content.

Let me give you an analogy to better explain why.

Pretend that I am an aircraft mechanic working for an airline. A commercial jet rolls into the hangar and is due for an annual inspection. However, since the aircraft is needed in action as often as possible to maintain revenue for the airline and since an aircraft on ground is an aircraft that is NOT making any money, we already filed the necessary paperwork to perform a progressive inspection instead.

A progressive inspection is exactly like an annual inspection only it is performed at set intervals (usually every month) over the course of an entire year rather than being performed all at once. On the first month we inspect the wings. The following month we inspect the tail section. The month after that we inspect the landing gear, hydraulic & pneumatic systems, and so on and so forth until the 12th month when finally sign it off as completed and say it's airworthy. In the meantime, the aircraft continues to fly for the airline to make more money. This is preferred over doing the entire inspection process all in one go.

Congratulations, you just learned something new that you probably won't even bother to use for the rest of your life unless you're an aircraft mechanic like me.