@Riot you claim you do not make changes for the sake of change, yet Udyr is getting another rework

Why? What is the thought process behind this? After his rework Udyr became my favourite champion - he is challenging to succeed with but satisfying to play, and he is strong. So why is he being changed? Where is the need for these changes? Do i really have to refund spirit guard and find a new favourite champion?

Why does he need even more changes? He's not weak and he's not oppressively strong. Why does he get reworked instead of game health issues like Death's dance, Fiora or Orianna?