Maybe it's not my role to answer this because I've not been an active part of this rebalance, but the big idea is: we "violently balanced" the gameplay to remove any over/underpowered unit strategy. That's debatable because we also removed much depth along with these imbalances, but that way we have a sane base to improve on. This is still the balancing status of an Alpha release, in which we corrected "bugs" and regrettably introduced new ones, and we will do whatever possible to eventually fix them