Post-Therapy Physique

After Tails is released from jail in the story, Lily encourages him to continue improving his training amidst a variety of other therapeutic activities. She's the one who stops him from going after Sage right away, biding their time for several months until he's physically and psychologically well enough to act rationally. The kicker is, Sage isn't the true villain in this narrative. They're a lot closer to home.