I definitely don't think it's silly to SV shrimp - I used to do it all the time - best shrimp ever! It's especially convenient if you're making a bunch for a party... and easy cleanup!
ETA - I just reread Douglas Baldwin's guide (I haven't read it in a long time) - if you packed the tenderloins individually (so they're more cylinder than slab), you can cut the heating time in half!