Wondered if anyone would notice how they are "attached." Turns out that the slots in the rack are positioned such that under tension, I don't believe it's possible for those metal ends to slide out. If something goes haywire, no harm/no foul since nothing can fall off - neither the bag nor the straps. And if something does go haywire, I have the extra straps in the bag to attach it differently. I like the way it is now because I believe that steel rack is so thin and the slot edges so not rounded that they will cut nylon given a little time and vibration.