I guess that I don't see the bend with the picture being taken on an angle.
Looks to me like the top of the mast is still sitting in the crutch, and I can't tell from the front if there is any damage to the crutch.
It also looks to me like the boat was not tarped. Having kept my WWP15 beside my house, on a wooded lot, I always kept the boat tarped if it wasn't in my garage. I don't know if all the stains will come out of the fiberglass. Yes, cosmetic only, but the boat should have been tarped.
Regarding a possible bent mast, I would step the mast and see how the furler and the mainsheet hang. If they appear okay, and the shrouds then I personally wouldn't worry too much.
My guess is that you will find mildew inside the boat. Not a big deal, but likely will also need to be cleaned. Check the sails as well. You may, or may not find mildew of them, in which case they may need to be cleaned.
I think the boat will clean up nicely.
I can't wait for this public health crisis to be over, so I sell my WWP15 and start looking for my retirement boat!