I think the bias comes from the fact that a warrior is supposed to be able to do that as they don't have much else to do against a mage. Yeah, maybe their lore will help, but overall its weapon choice + 3rd/4th attack. That's what they DO.
A ninja has a MUCH larger pool of tactics to draw from including strangle, jutsu, poison, blind, push, caltraps, ikuzachi, as well as having 3rd attack and fired weapons going off. To add to it even further, if you do manage to take some damage you have acupuncture to get you out of some bad spots and even cure light if things get really, really desperate.
Also, I believe that fact that you are bragging about not using all your skills available to win is another example that proves those that believe ninjas might be overtuned are right.
Edit: Taking that aside, the necromancer did not play this smart or even remotely strategic at all. They made some glaring mistakes that, although may not have won the fight, might have saved them from losing it as well. This log doesn't necessarily show ninja strength any more than another log would, but its just the log where this discussion happened to come up.
