I'm not convinced it would strip any wax or sealant that still has lots of life left in it.
However, both their site and YouTube description don't claim to remove just any sealant or wax.
There is plenty of mention on 'old wax' and 'old protection' terminology used which gives me the impression they are implying near end-life products -- which this could do. Heck, I mean, CWG can do that, among other washes.
Not something I'll be trying (seems like just another hole to fill that doesn't need filling), but looking forward to the results from those who want to test it.
Any "soap" with a high PH will certainly diminish if not remove a wax/sealant. My reference to high PH would constitute a PH north of 12 if not 13. These products do exist, albeit mostly in the truck washing/TFR arena I believe. A caustic degreaser with some thickening agents would work perhaps.