no, what we're saying is that a carnifex is better suited to being a gun platform, and staying out of cc. even without talons, if you give it the init boost, which i do even just as a gun platform, it is a rather capable hold up. the point being, with the way nid's guns work, the carnifex's high strength value is most usefull from range, since it is so slow, especially when trying to chase down units or vehicles.
another thing i bet you'll find, with time and experience, is that the fex can gain many more points with shooting attacks, than if it has to tromp accross the board, and catch things in cc. at least, that's what i've found, and i've had very good success with the shooty fex.