I stand by my view that Ema was fulfilling a need, and that WotC promised to fulfill that same need and broke their promise.
I feel that their primary commitment is to their legal team, not their product or their customers. Perfect evidence of this was the prohibition on copying the character sheets in KotS, and then the delay in getting printable versions posted (this should have taken no more than 24 hours, especially given that this was their first launch product for 4e). There were many people who were distributing Word or PDF versions of those sheets because once again WotC failed to keep their commitments in a timely manner. Or the lack of a dungeon builder, when they already had a perfectly functional one (that they didn't bother to keep updated with the current dungeon tile sets despite saying right on the page that it will be updated with future sets) they could post as part of DDI until the new one is ready.
There is a sign on the wall where I work that says "If we don't serve our customers, someone else will". That is 100% true, and when WotC failed to serve their customers, Ema was there to be the someone else. If they continue to fail to serve their customers, next time that someone else may be a game company willing and able to serve those customers with a different game instead of a fan using WotC's IP.
WotC has repeatedly misled their customers and failed to deliver on their promises since the 3.0 launch (if not before), they shouldn't be at all surprised if they've just about used up their customers' good will. Once that good will is gone, even reasonable and justifiable actions will be looked on with suspicion.