Um, I did put my source of my information in my post. In episode notes for Spark of Rebellion on Starwars.com it talked about the look of Kessel coming from GL's very notes. This was also talked about on the Star Wars podcast Rebel Force Radio--Rebels: Declassified Spark of Rebellion.
So if Starwars.com says this is why the design choice was made, that is pretty much official. One does not have to work for a company to repeat it's information. Especially when the source is cited. But hey, thanks for being an ass, instead of reading the whole post.
Im sorry if you are upset about Kessel no longer being a potato shaped astroid with very little atmosphere, that has gliterstrim being the poop of some spider creature. Maybe Kyp Durron and the Sun Chrusher won't exsistance either. As long as they don't f$@& with Trioculus and Mission from mount Yoda, I'm happy...