Square Enix Co., Ltd. is still neglecting its online infrastructure. Your #2 issue (floor tanking) is likely due to "snapshotting", which is very prevalent in Critical Engagements. While a TON of people LOVE snapshotting, the delay has gotten substantially worse, likely due to the larger player count. The game cannot handle 72 people in a CE, yet it still insists on split-second snapshots that are nearly impossible to move out of. The player count is making the snapshotting worse. No other MMO has this problem. This is unique to Square Enix Co., Ltd.

#1 is because there is no variety of gameplay. It is FATE then instance. There is nothing to break it up, because Square Enix Co., Ltd. has not invested in proper gameplay mechanics besides what they originally invented 11 years ago. Square Enix Co., Ltd. has somehow lost the ability to design new games. Obviously, the company badly needs a buy-out. Hopefully it can happen soon. Even if monetization would get worse, at least FFXIV will finally have decent content like WoW has now.