EX Staff weapons skills for whm only?

[Cabalabob]

I dunno about anyone else but it rly annoys me how WHM, a job that has club as its main weapon, gets access to the EX staff weapon skills (earth crusher, sunburst, cataclysm) instead of jobs such as smn blm and sch who main staff! since the level cap rise so many subs are better for smn now like rdm for refresh or sch for storm spells yet i find so that i can do the staff triggers for NMs in abyssea i'm still stuck /whm. I really think smn and other jobs that main staff should get access to these weapon skills so we can explore other subjob options.

edit: by WHM only i mean as a mage job, i'm aware PLD MNK ect. get it aswell ets club PLD gets even so why should they get it over the jobs who use staff as their main weapon, and get staff as their relic/mythic/empyrean?