"Tactics are how skills and moves are used and combined, not how many AP you can carry over to the next round. If larger numbers mean most people don't try planning 3 or 4 moves in advance, it isn't more tactical than if smaller numbers do encourage that."
This is silly. ... To again quote this nonsense,
Care to point out the fault in logic in that?
Three points vs twenty will not discourage or encourage planning ahead.
That is exactly the observation made that prompted this change in the first place. These changes were tried out in a test level first to see if they would work as expected, playtested and evaluated in-house, and more playtesting done publicly (PAX East, etc) to get feedback on the combat. Even more people will try it out and give feedback once the alpha/beta starts.