In terms of getting them to prep you guys, the best thing I could suggest is to talk to Pillow or Jimmy. I do recall Supremacy giving Rage an event before I retired in August. But, the best language that can be used with any one who may not dislike Rage is try to come to common ground. Not "we will off you with main for exchange of a prep." At least, that's how it came off to me and why I said it was a demand. It also doesn't help that keefn who was a big part of the beef at some point laughed at my comment earlier(not sure if he has any say now since idk anything about rage leadership atm.)
In terms of clanning starvation beforehand, I agree with you. In my opinion, it goes back to people not being to compete with clans of their same tier. It is a lot more to lose. Its also as Moun said, if they risk it, they may be able to win and get much more hype for their clan. I believe another person on my previous topic mentioned, it doesn't help that clans will flame after a loss.