I agree with Dr. Stephen Chan on this, provided that he's referring to the God loving Christians who are involved but never really fall prey to the erroneous doctrines of the denomination.
Next I would use my "used by God but outside of His grace" line.
The key is preach the Gospel to strangers, and the charismatics, especially the evangelicals, are always strong in this, while the reformed and the thinkers only love to talk and write blogs.
Both movements are needed. One is wise to balance the two.