"A Super-Ultra-Light (SUL) frameless pack is fine for a couple of days in the summer when you can be sure it will stay fine and warm, but for many walkers SUL remains a distant goal. For walkers going on longer trips, or going up in the mountains where the weather is more variable and requires more gear for safety, a slightly larger pack is needed. As the load increases, the limitations of a frameless pack become apparent, and greater comfort can be had with a framed pack."
is pretty far away from the truth as not only I experienced it. We just did a three week trip on the HRP (Pyrenean Haute Route) me with a golite breeze and my friend with a GG mariposa (with the stays removed!).
Living in Switzerland we hike the alps quite regularly, always just with our 200-500g bags and yes, we do carry crampons, tarps, sleeping bags, mats etc., and no, it is not uncomfortable.
This venture into the ever heavier and sturdier is very much in contradiction of all that has been established, not only by this website, over the last say ten years.
I do however see the limitations of SUL. Once you have reduced your pack weight to zero, the website and all that live of it become obsolete. Go-Lite experienced this a couple of years ago, so they went Go-Heavy. Let's hope BPL does go the same way.
Best Regards from Europe