Having seen some forks that have the lower arm "flex" bend in them flexing over rough roads I'd say that such a fork has more in common with the show chromed springs than it does with chromed tools or other things. Just to hedge my bets I think I'd look into the post plating bake to remove any embrittlement.

On the other hand straight blade forks are not going to see as much flexing and would likely be OK without it?