Yes, we've discussed, I'm just putting out the reason why *I* don't like it.
I absolutely agree with you about the mission scenarios ideally being more important, as assassination is a one track game, and if I wanted that, I'd play Chutes and Ladders.
Problem with making 'jacks more relevant the way you're speaking is that they'd need to rewrite some rules/give all jacks new powers to make them more enticing across the board. Instead of doing a rewrite, just basically making it that a warcaster's raison d'etre is the warjack, therefore he must have some kind of warjack in the list, alleviates my major complaint.
I also think that this would alleviate some of the big complaints about 2.0's scoring, as the points tied up in a 'jack (especially for Khador and their Sorscha armies) would keep the number of units down as well. But I have no empirical evidence to back that up.