This's exacly What is gona happen in preseason and Please tell if im wrong

So riot made new changes to the game and Everyone get hyped about it and start playing alot to learn new stuff and so on, Riot games think They did well and then take nap from balacing game for next 4 month. New season is out And game is so mess up and everything is broken and unfun ... Game is in chaos, Riot finaly after they wake from there nap " guys ... What happen ... We thought u like it and everything was good ... Why is everyone mad ... What we do " How about u actualy balance the game ? and not just throw bunch of changes with testing or actualy test it in preseason and not make season it self a preseason. Please tell me if im wrong and this wasnt case for last 3 season