I recently bought a Blackland dart. When you load the blade you can hear the razor crunching it in place. The dart defiantly puts a bend on the blade.Good point. The steeper the bend a razor puts on blade, the less additional exposure a wide blade is going to have.
Most razors don't blend blades very much though. I've seen more than one razor where the blade is actually 100% flat. The Henson razor bends the blade way more than any other razor I've ever seen. That's part of what makes it such a great design.
The Karve SB-D has the blade at a 14 degree angle for instance. I don't know what that would translate in terms of additional exposure from a KAI blade that was 0.2mm wider than normal though. It would affect the Karve more than the Henson.