Crispleaf wrote: In a section, "Why People Love Paladins" it says "They are useful as backup healers" as the first reason
For the ninja job it says, "Only a party that is light on healers will be reluctant to take in a Ninja."Seems to me, those are the parties that need a ninja.
And for summoner, they recommend the black mage sub-job, "Use Black Magic to enfeeble and inflict damage with summoning, then unload with attack spells when needed." Which may be fine in the first ten levels or so... but a the spells of a level 15 black mage sub aren't going to have much effect on the Mandragoras the level 30 party you're in are going to be fighting... they need healing not Aero for 15 damage!
I actually looked over this again today as well. I had hoped/assumed that the ninja quote was a misprint of some kind. I don't remember the summoner advice, but I never used the guide to tell me how to do a job, just to tell me what is available and when.
New to the game and need party advice? Watch how others do their jobs and find out what works yourself.