IMO, Interceptor is highly effective if done right. You should treat 3 times in a row (1x per week for 3 consecutive weeks) with 20% water changes in between while running carbon.
I had white bugs before, treated 1x with Interceptor and they slowly came back on this purple bonsai colony only.
I got the red bugs from some trades and at that point I just decided to treat the entire tank correctly (3x). They have not come back and its been many months since.
I had a cleaner shrimp, 2 peppermints and a pistol shrimp. No hermits. I also have a bunch of snails and an anemone. I ended up losing the cleaner shrimp and the 2 peppermints. The pistol, snails and the anemone all survived. I haven't even bothered to see whether i have any pods left. To me it didn't matter. The 3 shrimp were a very small price to pay for having healthy sps. Growth/coloration on my SPS have been amazing and polyps are showing crazy extension. The corals did not suffer through it one bit.
Dipping is only a temporary band-aid solution and there is no guarantee that you will kill everything by doing so. I dipped everything prior to introducing to my tank. I even have a large jewelers magnifying glass that I use to inspect all corals before introduction. It didn't work. If these buggers are in your tank, then you will need to treat the whole tank. In fact, Interceptor is so easy to use I might consider using it as a preventative measure every 6 months or so if I continue to keep adding new corals to my tank. Of all the pests that we could have in our tanks (e.g. aiptasia, valonia, AEFW's, vermitid snails, hydroids, majanos, red slime, you name it...) red bugs are EASILY the easiest to eradicate with a whole tank treatment.
Again, this is just my opinion, but i've been doing this reefing thing for a while so take it for what it's worth.