Big +1 and a first post here for me.
People who don't understand remote start have probably never experienced real cold. Heck people around here who work in the field often never even turn off their diesels overnight. Not something you use every day, but sure is nice when you need it if only to take the edge off a very frozen vehicle.
My wrangler Sahara, which was a keyed ignition vehicle, had an OE starter which was just button combination to press on the fob. Hoping something similarly slick is doable.
Heck my German X5 has key and cellular remote start from factory, so the Germans definitely know how to do it with the same hardware/engine inside the grenadier.