Nasus buff was completly uncalled for..

Having Nasus with way to much stack before 20 minute is legit dumb. Before Nasus had to stack his Q to actually do damage. Even thought I never liked this passive playstyle of farming to Win, we had time to end the game and punish Nasus. Now he just reach 400 Q farm under 15 minute and start farming champions and it give 12 stack everytime. Seriously who thought it was a good idea ?