crowdfunding campaign that exceed expectations put the developer in a really tough spot. Star Citizen asked for $2 million but got 6. If they had said they keep everything the same, the schedule would stay sane but everyone would call it a money grab because they take $6 million to develop a $2 million game. The other option is to make use of the additional $4 million, but in almost all cases that will destroy the schedule.
Now if you are like Star Citizen and keep raising money (and get another $180 million) that same principle quickly pushes you deeper and deeper into feature creep.
It's a systematic problem every crowd funding project has to solve. Star Citizen seems to have stabilized their predictions of total money raised to get a fixed feature set, but I can't blame them for not predicting that they would raise over $200 million until release and planning for that.