I'd think you'd still be at altitude though and therefore a greater chance of giving a radar return? Whilst this is all well and good (in fact, mandatory unless you're using off platform designation) with a guided bomb on a ballistic trajectory, I can't see the sense with a powered missile designed specifically to skim wavetops as part of its flight profile.
To my mind (mine, note) it seems a case of saying "hey guys, here we are up here shooting a missile at you" rather than launching a Harpoon or the like and exiting stage right as they say in the funnies.
Regards,
John