and i see the comparison. But in my experience dreadnoughts rarely end well or fit in properly either. Or whatever )race and super heavy walker equivalent) you want to make. 

And besides, there are alot fo different aspect shrines. And they differ from shrine to shrine within their own aspects. And one could make a fair argument for use of rangers and guardians as a type of psuedo aspect warrior for the purposes of this game. And the jetbikes and pilots are actually aspect warriors. They even have their own shrines and everything.