With respect, this is nonsense. We've seen what Sideshow can actually do when they inject a bit of love and passion into a project. Their recent Thanos for example is as good as any company could have made. Their Iron Giant maquette is superb! And prime 1 regularly make incredibly impressive, and very large statues for less than that amount of money and their production pieces match. I mean their Dog alien is pretty much perfect, it's 1/3 (huge!) and still only $250 more than this maquette. You are right however that Sideshow could be making much better Predators if they wanted to... So why not do it? $1300 is hardly pocket money. They showed with their Wolf LSB (prototype) that they can do good things with the license when they want to. The recent maquettes seem to be a love free side project sadly, they're just okay..
Here's the thing, I love Sideshow and I spend a fortune with them. But there are other players in town now and they mean business with the Alien & Predator licenses. Sideshow need to work hard to keep up. And I hope they can.