Okay official opinion: They look/sound strong but to be brutally honest, those gussets looks really gay. I'm not a fan of punching unnecessary designs into an otherwise strong and clean looking product. Like if the manufacturer/designer thinks they can get away with lightening up the gussets a little, cut one hole out of it, or make it a straight edge. It looks silly IMO.
Thats a legit reason. Its maybe a difference of taste. We like them.
Marcel