Anybody can put a hood decal on. I don't think its a big deal. Now if you were to put badges or something like that, then that's a no no.
No different in my opinion then someobdy with a non TH putting tow hooks on. Or somebody putting BFG mud terrains on a non Rubicon jeep wranger. Only the Rubicon model can get those from the factory
Go for it.
2014 Trailhawk. Bright White exterior. Black Leather interior. V6. All available options (Cold Weather, Comfort / Convience, Sunroof, tow package, hood decal, Nav radio, 9 speaker sound system) , 245/70/17 Firestone Mud Terrains, BVG roof rack, LED fog lamps, LED interior lamps, LED back up bulbs, hood decal pinstripe, rear mounted hitch tire carrier, AFE Cold Air Intake