And that is was scares me of flying non turbofan planes. The wings on training planes and prop planes, except C-130/C-160 style plane, are so thin that it always scares me the wing will fall off.
Every wing has a speed limit, no matter how thick it is.
And proportionally, for the aircraft size and weight, TBM 700 wings are no thinner than those of any jet airliner.
It's not like the wing just fell off... he almost certainly lost control, probably due to ice
deforming the airfoils, and while out of control, the aircraft exceeded Vne, causing structural failure due to excessive load (more speed=more lift= more stress on the main spar), harmonic resonance (look for a video of "Tacoma Narrows Bridge" to see how even the mightiest structures can fail due to vibration), or control-surface flutter leading to excessive flexing or twisting on the wings.