You know,
Mine developed cracks after 5 flights, not as bad as that one though, and I replaced the wing. I have been flying it all summer with no incident now and no more cracks.
I recently was practing 3D too low :-( and kind of dinged up the wing beyond repair. I was contemplating just bolting on the old one to keep on flying. I have flown it so much it doesn't justify buying a new wing again.
How long have you been flying with cracks like that?
Rick