Excellent article! I like that not only are problems recognized, but solutions are also presented.
That said, I always though that Matt did an absolutely fantastic job of balancing cards in a set. Given his strong stated desire to hand off the CEO role as soon as the right opportunity presents itself, I would LOVE to see Matt back to designing the cards once that happens!
Yea, we've gotta have the restoration of balance at front of mind with the next core set. Would love to see Matt take on the challenge of designing that new meta!