PvZ Heroes hacked?

I have been playing this game since release and a fan of PVZ since the original. This update ruined the game. I have EVERY card there is nothing left in the game for me to obtain. Yet I still play. In all the YEARS off playing the game I have never seen things this bad the knights issue, all your shields evaporate after one hit… Playing as a plant now is useless unless you are lucky or just want to give someone else a win. They broke the game and if this is hacks they need to fix this ASAP. Like said above ADD CARDS! The balance was fine before this “update”.