So what if they had to wait for it? We, PC players, had to struggle with the bugs and lag and bugs and every single thing that went wrong for over a year and what do we get? A big fat nothing? Yes, I say nothing because a parasaur saddle skin is really nothing compared to a bionic giga skin that some people get for just waiting for the game, while others actually had to experience it and all the issues that it had/has, had to endure the lag, the bugs, the rollback, more lag, even more bugs, more bugs and more lag. Your logic seems pretty fair to me.
Honestly don't see why they should be "EXCLUSIVE" for other consoles when PC has been here for the longest and I would say helped the development of the game the most so far. Why not make these bionic skins obtainable for ALL (PC, Xbox, PS4)? It's simply not fair and I can assume you that this is NOT just my opinion.