That's been the trend the last 5 years or so "MB is not deep so I don't like it!"
Meanwhile, I've been to Valinor more times than I've gotten the Big 6 stack. Rock Before Bash is also very difficult! RBB is of course easier than Big 6, but still pretty darned difficult (and worth more than a 50M bonus, I say!).
MB is just awesome. I see MB and CC being the only B/W which make sense for Planetary at $8k.