Well I think the developers chose those weapon skills in mind for procs because if blms got them as well then we would then have the majority of the spells for grellow procs, blunt blue procs, and now staff red procs. That a lot of procs for blm where as some jobs have hardly any. I'm a career blm, I love all fellow blm's as well but I think the logic was simply that, to not over load one job with important procs.