First, i know effectively nothing, so consider me to be a blathering idiot, and take my info accordingly
Now that that's out of the way, yes, thinning the edge with a stone (i'm thinking katana thin) will definitely make the edge less durable, but then, INFI is already extremely durable, so if you want it to be a slicer, a thin edge will be okay. There are already some very thin edged Busse knives that don't seem prone to damage
I wouldn't thin the edge on a chopper much.