Might be a true story though Fork blade are very easy to cold bend and hot bending is a lot more trouble and requires enough heat to do bad things to almost any blade. With extremely fragile blades and rock hard wheels, used by athletes, there really isn't any reason to worry about the compliance of the fork and a straight blade should work fine. I have straight blades on one touring bike, and while they have a number of things I don't like, feel is fine. So technically why bend them
Aesthetically I prefer cureved forks, and if one is doing non-stock things to offset, it's better to start with a straight lug and bend them. Otherwise the tiny tweak may look like an accident. I'm building some 70 degree head tube forks, and I need to customize the trail, so I have to do some bending.