I agree that a base kit with a "extras" novelty kit, spacebar kit, and ergo/planck kit is the way to go. The second, in my opinion, much more real reason the GMK drop flopped that has been all too common with Massdrop is when for whatever reason why, MD decides not to issue a pre release announcement or any notice at all and just expected the community to flock in and buy 250 MOQ.
My opinion but, in general 250 is a pretty low number, and the community is still not big enough to buy in on custom sets that nobody knows is coming.
Be rational and let the community know what's expected and give us the courtesy to review the set and help it reach MOQ before the "drop". Group buys need support to be successful.