It's a very specialized skill set that can't just be picked up on a whim during the course of some fictitious emergency. I'm not saying that AF dudes don't have the capabilities to do it, but they certainly don't know the techniques that we use, and they haven't practiced it 100's of times before they ever see the back of the boat either. The way we fly an approach is fundamentally different than the way AF jets are flown, and I'm not even sure that an Eagle or Viper could even be flown in the manner that is needed for a carrier approach. I know the T-45 (for example) as well as the S-3 took a good deal of massaging during flight test before they came up with fixes that made them suitable for CV approaches. For the -45, that involved added speedbrakes, which are extended for the approach, which allows the engine to be spooled up higher giving better throttle response. Throttle response being just one part of the equation. The pilot would need to be flying at some undetermined optimal AoA which would give him the correct ball indications (high, low, on) relative to where the hook point actually is in space. For a naval jet/aircraft, it you are slow or fast, you will actually see an inaccurate indication on the IFLOLS, owed to the difference in hook to eye distance because of the aircraft's different attitude while being above or below on speed. Waveoff capability is another concern. At such an approach speed, will the jet's motors be spooled back so far that he doesn't have the engine response/spool time to execute a safe waveoff if things don't work out? Just way too many factors, many of them not even being pilot-centric, for this to even be a possibility. I don't think any LSO worth his job would ever let it happen, let alone an Air Boss or a boat skipper. And as Bunk eluded to, a barricade isn't easier in theory or practice than a normal trap.