God’s Word only defines all sickness one way: oppression/captivity of the enemy/a curse – never as a blessing.
Jesus came to set the captives free. Many sicknesses are caused by spirits of infirmity/are of demonic origin. The Lord would never call it cute to leave someone captive to the powers of darkness that can hold minds hostage. No, He commands us to cast them out in His Almighty name!
When we stick to His definitions of things, the truth sets people free.