I recently built a set. I used non boost, 135 and 100 qr in fact.
You actually face the rims different directions. Front to account for the disc side, and rear to account for the drive side. The theory is that you don't have to pull the tight side quite as tight, to get a perfectly dished wheel.
I've heard other banter about them allowing you to use the same length spokes throughout. That seems like more of a hub type variable than rim.
The wheels most certainly are not even tension side to side. The only way to get that in my experience is a front rim brake wheel.
That said, they're probably more even than they would be. And the tight side (front disc and rear drive) is not as much tighter than usual.
Will this result in a stronger wheel? Probably. But will it result in a wheel that is so much stronger that it makes everything else obsolete? Not at all.
It's a selling point. Look for the rim you want, width, weight, price, intended use. If they're asymmetrical, cool, if not, cool.