Seems like it. THF is a horrible example, though. People have THFs melee even if the TP feed is a pain in the butt because TH is awesome. Step 1 should be more like:

"Is your Summoner, White Mage, or Bard melee'ing?"

White Mage is a stronger melee, Bard is about equal to Red Mage, and Summoner is significantly weaker as a melee but good luck telling some of them that.

Puppetmaster, Blue Mage, and Thief are all stronger melees than Red Mage (PUP by a lot), and Blu/Thf both have unique utility reasons to be melee'ing.