1.
Because with out a shock absorber the oscillation in side balance would be far worse.
2. A deterrent is needed to prevent people from changing sides at will to prevent other game play abuses.
3. In my view I should go back to the 24 hours. The goal is to never have ENY kick in by dampening out oscillation over time.
I'm glad you've posted this. Most players aren't rule breakers, so number 2 comes at a cost, and that's threads like this, and a percentage of players who play a certain way - the a2a only focused type players IMO - will be frustrated by the reality of what the rules impose.
Number 3, again, IMO these threads always bake down to "the numbers", and again, HTC is the only one that can really understand that data, and I do understand that a longer time period = less ripples in the pond. Still, even to that there is a cost, isn't there? Otherwise it'd be in place already I'd assume.
IMO considering how complicated a system it is to create rules for, the game has done very well in maintaining a balance, especially during peak hours.