They do not pay as close attention to details as they used to. The back side of these are always a little messy but that one seems a little worse than I'm used to seeing
I checked mine yesterday and the underside looks just like yours. I purchased mine a few months ago. The top has nice, even stitches though. It doesn't bother me, as no one can really see it anyway. If it weren't for this thread, I probably wouldn't have noticed at all.