“Subject closed” maybe by you. But not by God. It’s your choice to make, obviously. Choose wisely.
Who determined that this interpretation is correct? Are you God? There is no way to determine this, other than verses pulled out of context.
The idea that there are no longer miracles and faith healings is tenouous indeed, and scripture does not clearly state this, despite the attempts at pulling verses out of context to attempt to support a very weak position.