A few people reporting this is not "too many". In the grand scale of things is a VERY small number. I know this doesn't help if you're one of them..Have you tried contacting support? If not I would try there..
You understand that there are over 100,000 in the air now? If it was a wide spread problem you would be seeing it pop up all over. Yes there are a few cases of it. DJI is looking into, they are actually requesting for the ops craft back directly for study.
On no Blade Strike. It's a lot more than you think. I have had stress cracks on every phantom I've owned with the exception of one craft. So I know what to look for. They are not that visible to the untrained eye. But these new ones on the screw holes between the motor area and lights are a whole new bag. In fact I did not even see them until the first poster in this thread put up a picture with a circular hole perimeter crack. I wasn't looking for those but the old classic motor mount screw hole to the shell seam crack. Trust me, not everybody is looking. Especially first timers who have never seen a phantom crack. If they all looked there would be a lot more noise. I would make a YouTube video explaining what to look for in order to help DJI get more accurate failure figures but my shell is already glued together. As I explained, I'm not looking for a refund. I just want DJI to fix this once and for all even if the phantom cost me 2000 euros to buy.