Jesus restored a man's eyesight using clay and spittle.
Personally, as long as people get healed I have no problem at all with how GOD chooses to move. I'm sure if the person is sick enough and wants to get healed bad enough, they won't care either!
I don't care if it is spring water, oil, a prayer cloth, or whatever . . . just let GOD's people be HEALED as they should be!
Be Blessed, y'all . . . .
