>>52676184Because Renamon became a de-facto mascot for furries to latch unto. It's even a joke that Renamon is more of a Pokemon than a Digimon since it gets brought up like with the examples in the OP. Renamon makes up something like 40% of all Digimon NSFW but Gatomon and others still have numbers backing them up, it's really the designs in your picture that were pretty much left in the dust in terms of NSFW art.
>>52678655Angewomon and the rest of the cosplay tier designs can barely match up to Gatomon if you combine all of them. Leomon even has more NSFW than Angewomon. In the realm of cosplay tier designs it's Dark Magician Girl who came out on top, probably because furries didn't latch on to the series like they did with Pokemon and Digimon.