Offensive "utility", in practice, is a euphemism for lower performance in sub-8-man content and slightly greater punishment for death -- atop being dependent on 7 other people to get a good parse.

It's already accounted for in your rDPS, and thus really only amounts to temporarily taking efforts to shuffle your numbers to others' bars before shuffling them right back again.

MCH could do with or without it. If the concern is power or actual utility, though, the solution is simply to give it more power or actual utility, respectively. Including offensive "utility" into its budget provides neither.