Good luck in your search DD!   I don't know about you but over the years I've probably sent back more possibles (new) than I've kept to destroy on trips. I have yet to wear out a sole on anything but street shoes and in a few years I'll miss the discontinued Patagonia/Lotus Designs Play Boot. I blew out my third pair last trip with a 3'' rip in the instep so now I only have two pair (plus a right) - left. After a few trips the pairs become interchangeable...

Just looking at the links and reacting:
The Teva doesn't have a heel counter. That alone would take it out of the BW/Q realm for me. I once had a nub of a branch pierce the sole of my Tevas and the sole looks thinner and presumably softer on these. They look like sailboard boots to me.

The NRS, while the sole appears to be thicker, I'd also want to see what protection the instep (other side) offered. Personally I'd want more than neoprene to go up to mid ankle.

The thing about lighter boots is, ya gotta consider what could happen to your feet when you're just crashing through stuff. I'm also not sure how I'd like Velcro instead of laces but I'm still a youngster.  ;D    The NRS look really hard to put on and take off. Is there a zipper ... that might provide some ankle protection?