Shyvana nerfs.....Why

Honestly I feel the nerfs are mistakes, I am a former jg shyvana main and frankly I stopped playing her, even in the times she was OP, why? For I felt like people who were like Reksai or leesin or hell even hecarium were far supperior for they brought a element of damange but also cc for the team CC is so valueable in ranked games for that is how u get to the carries and kill them, and shyvanas only method of doing that is R ontop of them W chase and pray to god the enemy lux doesnt snare her. She makes up for her lack of cc with her damage, take away her damage, and now you just got a mediocore dragon with no cc and MEH damage