Those splits look exactly like some off road mud tires I had that were run under inflated. The large lugs can’t flex and when run severely under inflated the rubber will split apart, and it only takes a couple revolutions to do it.
/ 2018 GC1720 Tires Splitting after just 20 hours of mowing the grass?
Finally received my replacements. Glad to have them. My only annoyance is that they look like they used the shittiest, dirtiest, mold to make them. Like they're cosmetic rejects or something.