Because I'm a little into ultralight backpacking: > 1. no chest strap to help distribute the load. I see a waist strap which is nice, but chest is generally th

Because I'm a little into ultralight backpacking: > 1. no chest strap to help distribute the load. I see a waist strap which is nice, but chest is generally the bare minimum UL backpacks usually don't have a lot of features, because they are built around the asumption that you optimize every single item for weight (best case by just leaving it at home). So it's not a specific property of that design, but in general for all UL packs that they leave features away that are meant for heavy load backpacking.