The facts are that an aircraft took off safely from the IOW and subsequently hit the ground in an area that may not have been experiencing weather that was suitable for safe VFR flight. Anything else is conjecture and unlikely to help anyone.
Without commenting on this particular case (because there are no relevant facts on which to comment), if any post-solo pilot does not know that continued flight into bad weather without substantial instrument training is a killer, or that stalling near the ground is a killer, or that blindly following "pink string" is a killer, then they need more help than can be provided in this forum.
Accidents happen. We start our aviation lives with a full bag of luck and an empty bag of experience - the trick to a happy flying career is to fill the bag of experience before emptying the bag of luck.
HFD