Yes, I originally supposed so too, but I doubt that those who used them as Pawle records for throwing potatoes at each other bothered with windage too much. And I cannot find reference to the other adaptations, grapnels etc, which might shed light on this aspect of use.
Anyways, was just a thought, I suspect that these two grenades are one and the same, tho' I might be wrong, and I cannot account for the small hole at the end of the extended lever either, unless it was for a safety wire or similar.
Defence rests its case unless or until more information is forthcoming.