I may be in the minority here, but I feel like there is no problem with Expo or with Crypt. The code has been this way since those features were introduced, and I feel like the 'why' was explained adequately.
However, for the people who do not have "the team" that annihilates the current meta, going up against the same few teams that do over and over will mean not being able to beat expedition, it will mean not being able to defeat crypt, and neither of those sound very fun to me.
Again, I may be in the minority here, but I play games to have fun. I do not play them so that someone who has spent thousands of dollars and hundreds of hours grinding for the perfect runes can gain the incremental advantage, using heroes that should maybe not work quite the way they are, to destroy my lines before they can take any action. (To clarify, I don't have fun when that happens)
I recognize that it is less interesting to have crypt and expedition be less powerful, but I think that attempting to pursue resolution to this problem before hero rebalancing is accomplished will achieve the opposite effect. No matter how good you are, there is only one person on each server who can simply destroy everyone else (and, based upon some of the threads about Karaoke King, that may not even be true; there could be some sort of round-robin thing happening). In either case, no one wins. If every crypt line became a blitz-KK line, can anyone tell me honestly that they would be able to clear their crypt every day? If so, please share your secrets.