Maybe Lockhart can weigh in here on why the fuse is set so short? I believe it's currently 1.5 seconds, which is too short for a throw of any decent distance. Could they look into a longer fuse? Perhaps 3 seconds? Possibly as an option? It's one thing to have the lead guy on a tactical entry team toss one of these into a doorway a few feet away, but guys on here aren't using them for that. They want them for, among other things, bear deterrence which could, and likely would, involve throwing these at greater distances.
I know that hand grenades in WWII had longer fuses, as long as 7 seconds, but that time was cut almost in half because the enemy had time to either jump to safety or pick it up and toss it back. I don't think there's any worry of that happening with these, so I'm not sure why such a short fuse time was selected. Apparently M-84 stun grenades have fuses that are up to a second longer...