It’s STILL All About Jesus!
Road Signs all basically having a common message (Be safe, get there safely).
So, too, the Miraculous Signs in the Book of Acts have the same common message: Jesus is the One Way to be Safe with God and enter the Kingdom.
Here a Different Sign (healing) leads to the Same Message: It's Still All about Jesus! So turn to Him.
Physical healing points to our DEEPER need: Spiritual Healing - eternal Restoration with God.
So turning to Jesus (repentance) is a positive thing!...because by turning to Jesus, our sins are washed away, our conscience is cleared, and refreshment comes! Repentance is GAIN!