Probably! But its an interesting aside as the AW 609 fin mod truly does look like the BLR fin profile.
The longitudinal strake on a round-ish tailboom causes flow disturbance and boundary layer adjustment that virtualizes an airfoil shape in profile (imagine the tailboom was shaped like a wing with its nose up, quite expensive to manufacture and structurally inefficient). However, if you take a round profile and add a (simple and inexpensive) protrusion to one side near the stagnation point, you get a very similar aerodynamic effect, believe it or not. Think of it as a sort of vortex generator.