That's a pretty good way to look at the distribution of spells between the classes.
Yoshi-P also mentioned during an interview that Arcanist would be a class revolving around the use of land traps and maybe buffs. Maybe all the debuff spells are going to Arcanist? He also mentioned albeit maybe a bit informally that the job that would go along with Arcanist would be Geomancer probably.
Unfortunately we have to wait on THF, since he said he wanted to focus on creating more mage classes first, which probably means adding Arcanist/Geomancer? and a pet class (Tamer/Summoner?) before adding more melee. I also want my THF and NIN.![]()