John 10:37 "If I do not do the works of My Father, do not believe Me;
38 "but if I do, though you do not believe Me, believe the works, that you may know and believe
that the Father is in Me, and I in Him."
If signs, wonders, and miracles were needed so that we'd know and believe that the Father was in Jesus how much more true is it for His Church? The early church testified that many miracles were done in His name and this verse testifies to it:
Mr 16:20 And they went out and preached everywhere, the Lord working with them and confirming
the word through the accompanying signs. Amen.
To me telling someone that healing is a minor issue, a side issue, or even a non issue is wholly missing Jesus' ministry. It would be like a football coach saying that they will never pass the football, only run. Or a basketball coach saying that we will only shoot the ball towards the hoop when we have to...we don't want to make passing or shooting a major issue!
Taking major components of the gospel and eliminating them, demoting them, or making them seem extreme is not from God it's from the other guy.