One problem I see with the artice is that from what I've read on "Cateaters" (rock x burm) is that they are infact smaller than either parent species(males 7-9ft and 20-40lbs, females 10-12ft and 40-60lbs) and are docile in temperment so the idea of a giant super aggressive monster just doesn't hold up..
I'm pretty sure their called bateaters not cateaters.