It would have been wise then to include the customers in the discussions about "dropping" the Offline feature, if the "new" features from the "feedback" would indicate it causes problems with one of the deliverables?
I said before, if a Project Manager would drop a committed deliverable, agreed upon with the customers/stakeholders, drop it without even consulting and discussing this with the board of stakeholders and his customers (the people who pay for the product), he is virtually asking for a legal dispute.
Which I think is not in anyones interest.
Maybe if you would have told the customers that the shiny online feature will come at the expense of the offline mode, people would have given feedback, indicating they could spare some of the online dynamic stuff, to be able to play the game at all?
I personally decided not to leave and have a refund, but I can really understand people who do... and I'm not happy about that decision either, especially as it will spoil my experience of exploration, and may be mining and trading also, because every weekend I can play, the galaxy and its economy has magically changed...