The Harpoon is a mission-kill vice platform-kill weapon. You may not be able to continue your mission after getting hit but you won't be swimming.
FWIW - I was qualified to operate both the Harpoon Attack Console (an enlisted job) AND direct the mode and method of attack (usually the Tactical Action Officer or the CO).
I certainly hope they have streamlined the process in the last 35 years.
WWG1WGA
Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)
I guess it depends on perspective.