Has anyone who was previously an atheist or not religious become religious over this?
They claim many, which could of course be exaggerated, but likely yes there's at least a couple of sincere conversions.
If this does take off, the cultural impacts could be very abrupt and unpredictable. The 2nd Great Awakening is widely understood as leading to the abolition of slavery (at a time the institution appeared to be gaining ground) and the 3rd Great Awakening is widely understood as leading to Prohibition (starting from a time when Americans drank at least 3X what we do today).
That's interesting. Starting with Cromwell, these things seem to happen every 100 years or so, in which event it's time. If it's happening, what will be wiped out this time?
I was not really familiar with the 1st great awakening, and exploring the wipe out theme attending these revivals, I looked it up. One can read for oneself, what was deemed to have been left in its wake, and what was exorcised.
https://www.ushistory.org/declaration/lessonplan/firstgreatawakening.html