Originally Posted by
nothingsjim
May be, just may be, that is the point when Illidan realize running doesn't work?
Illidan fled to Outland once, after trying and failing to destroy Frozen Throne with Eye of Sargeras. After being confronted by KJ he leaps back into action, yes, he got owned by Arthas, but that's not the point.
Velen, on the other hand, keeps running for untold amount of time (Probably longer than Illidan's 10k+ years lifetime), dooming countless worlds to Legion that pursued them. Hell, we have no idea how many worlds Draenei escaped from before they become trapped in Draenor, and judging from the lack of other species on Exodar, the native of those planets probably didn't survive. It took the death(Confusing Twisting Nether Issue I know) of his own son to finally make him to take action against Legion instead of just flee again.
Yes, Illidan is a major ass, and his action led to dire consequences, but so is Velen's inaction. The only difference is, Illidan pays the price of his action himself, while Velen has other people/planet pay for his.