It also says "spliced by the experts at rope logic." There's no desire for precision in that description.
It is funny though.
Despite this thread being in the 'Buzz Splicing category sewing as the primary join really isn't splicing in a real world rope use sense. I think when SherrillTree first introduced (at least to the tree industry) machine-made sewn eyes they called it a "splice" to ease the worries of climbers who didn't want to trust the idea. I think it was more of a gentle marketing strategy than factual representation of the construction. This terminology use has continued.