Goddamn, Anomaly companions are such a double-edged sword. They're useful if you're going artifact hunting as watchers and pack mules, but they suck in combat -- especially in close-quarters. If you're going into Agroprom Underground or any of the labs or even the north Cordon checkpoint, you might as well kill yourself 'cause they will push you into gunfire at some point.
If they added an option to disable companion collision, companions would be way better. But alas, there's not even an addon, so fuck Hip. Cunt can get her artifacts by herself.
It's Unreal Engine. I'm sure there would be some modding even if they disallowed it. But even then, GSC would be shooting themselves in the foot if they didn't support modding for HoC. Mods are the main reason why people keep playing the original trilogy to this day. No mod support would be suicide.