You do have a point on the image being fake, although right now we still need more evidence (additional photos/videos, higher res pictures of front view, etc) to be sure. However, the accusation of it being cognitive warfare makes much less sense and doesn't really have a place here. Unlike some of the other forums that you probably had experience with (Ding Sheng and CJDBY for example), here people are generally more interested in tech-based discussions and not politics-fueled internet flame wars.
Even if the image is fake (we cant be 100% certain at this point but i do think there's a good change that it's fake), blaming it on Taiwan makes zero sense whatsoever, and serves no purpose other than starting what essentially is an unfunded smear campaign based on guesswork. Be realistic, Taiwan (and any other country or region for that matter) has nothing to gain by putting a fake CGI image of J-36 online, so the whole argument for a dedicated cognitive warfare effort just doesn't stand.