Looks like a combination of not getting the ripstop into the binding fully before sewing, and edge ravelling (perhaps not cut with a hot knife?). (Sometimes that grosgrain can hide a problem rather than preventing one....)
Not hard to fix, but this sort of thing shouldn't happen with commercial quality gear.
The vendor should make this right for you.
I'd give all the seams a good firm 'test', if it were my gear. Better to find problems now, instead of some night 'out there'....