Given a premier group... sure... For that matter lets roll in there with some Finger Sorcs and show yer DPS melee what Kill count stands for.Problem is an intimitank that doesnt add anything to the fight other then getting aggro, isnt helping nearly as much as some ppl think. Much rather go in there with some high AC DPS tanks and just move through.
But given a realistic group, 1 Intimitank ramps up party efficiency more than a build such as this. And you don't need more than 1 to do it. Higher mana efficiency, which directly results in more offensive capability through centrilization of targets, increased to hit and damage capability of allies, and time efficiency.
To mock an intimitank by saying they don't add anything other than getting agro is well.... naive.