Heroes Origins Flops. Do You Care?

SciFi Wire reports that Heroes: Origins will be shelved due to a writer's strike. Slice of SciFi reports that the current Heroes season maybe be ending early because of the same writer's strike. Is the number one science fiction show in real trouble or is this just standard stuff that will blow over? Production has just stopped on Origins. The strike has interfered so much that they are talking about shooting an alternate ending. How does this work? If an alternate ending is needed, doesn't someone have to write it? Being from Texas, I don't really get unions. If you don't go to work, they just hire new people... to work for less.