I think there must be a difference; I know the NOC will continue to raft during lightning storms because the trees act as lightning rods (according to a raft guide I met)..
In the case of the storm I was in last weekend, I was more worried about missiles (flying limbs and branches) or falling trees than intermittent lightning. Trees are much taller than I am and being in dense woods offers protection from lightning.
What we're told at my construction site is that small metal objects only influence lightning if it's close by, in which case you're already screwed.
If you made any day with a chance of thunderstorms a zero day, you wouldn't be hiking much in the southeast in the summer. Exhibit 1: forecast for Hot Springs, NC.