In my One Year Bible reading back in February, I passed over these words in Mark 9:24.
They could be my words.
Related to this, I like what Tim Keller wrote in his latest book, King’s Cross:
Through Jesus we don’t need perfect righteousness, just repentant helplessness, to access the presence of God. Jesus could have told the man, “I am the glory of God in human form. Purify your heart, confess all your sins, get rid of all your doubts and your double-mindedness. Once you have surrendered to me totally and can come before me with a pure heart, then you can ask for the healing you need.” But Jesus doesn’t say that–not at all (p. 128).
Jesus in Idaho Falls 
No, Jesus didn’t. At that point, it seems he was trying to conceal His Deity/Messiahship. And besides, that is not how love acts. However, when all is said and done, if the man hangs in there with Jesus, all sins will be confessed and all doubts resolved. The man will indeed be made single-minded/pure of heart.
“Lord, I believe. Help my unbelief.” Such a wonderful prayer. Right up there with, “Thy will, O Lord, not mine, be done.”
The Lord indeed meets us where we are when we cry out to Him. In fact, we eventually discover that He was there all along, even when we were ignoring Him, waiting for us to wake up enough to seek Him, poking us in various ways, saying, “Wake up! Wake up!”
However, He does not leave us in the sty with the hogs, no more than He left the Israelites in Egypt. No more than he left this man unhealed.
You might be interested that Tim Keller’s The Reason for God was cited by LDS apostle Dallin Oaks in this recent lecture on religious freedom:
http://newsroom.lds.org/article/elder-oaks-religious-freedom-Chapman-University
The bit which Elder Oaks cites is about moral absolutes, but I wonder what he made of the book as a whole.
I would be curious.