Oh man... That's up close and personal there...
There are many things I have come to find are very easy to underestimate... And while I've never had the pleasure of finding out personally with a wind turbine, I've seen enough pictures to know that nothing its immune... They all have a weak spot, and it almost always involves direct physical damage to the turbine or tower, or both, which you have certainly found out.
Glad to see though that your spirits aren't dampened by this - learning hard lessons is a very significant part of the "fun" with this stuff. It will rise again...
Steve