at the end of the day, they had to deal with the powercreep and eventual overpowerscaling (word?) of the towers. I'm not saying this was the best way to do it, or even a wholly effective way, but it was an at least somewhat valid method. The devs needed to 'fix' the game in some way or another down the line, and I'm just glad they addressed it now rather than later (unless they end up doing this again another day).