@GreenDude
I think it was less the pain, and more the loss of control. The dude basically said that the dragon hated its more violent instincts having control over it during the Spurts, so suppressed them. Which is kind of understandable. Losing control, losing *agency*, can be something that makes anyone uncomfortable.
Was suppressing its own growth for several years till the point it hit all at once and went berserk smart?
No.
But it is understandable, because no one likes to feel like they are not in control of themselves.
Well ok, some people do.
But we don't talk about them in polite company.