Riot doesn't want to give Shyvana any particular CC/Utility within her Kit
So stop asking for something they have been ignoring for almost a year now.
She's not a Dragon she's a dog, you can put Shyvana in a cage and destroy her by a simple Stun or Slow, you can ignore her in team fights because she relies on her team mates giving her the Utility that she needs to do her part as a Tank.
Compared to Sion or Amumu, Shyvana relies on her team mates to CC down the enemy because she can't do nothing but run and hope that someone is dumb enough to be near her W.
Shyvana is so bad that when someone shows off their match history saying she's good it's all basically kill steals and left overs that the ADC would've gotten but the mobility on Shyvana was a big 'F U 'to your carrier's face.