Interesting yet troubling article. Finding God in the personal religious experience is IMO a good place to look, but I believe the 'Vineyard" folks are not thinking that their experience is one of many a person can have with the sacred / divine. They believe they are getting direct messages from the all knowing and almighty God. When they say, "God said to me....". They literally mean it!
I'm always amused when the God they hear always agrees with their prejudices.
I'm always amused when the god they hear always agrees with their radical "improvements". See how that can go multiple ways??