Yes, FFA. Didn't McClure basically do it with a fall and yo yo? I would have thought the 'crux' with a route like this is getting a partner to climb all the approach pitches and hang in hanging belays, for you to take the glory on the roof pitch!
I've only been to Pabbay once and despite it being an absolutely stunningly beautiful place, I found the climbing a bit boring. I know that's not a very fashionable thing to say, but most routes we did involved jug pulling up a steep wall/crack. You don't seem to get many technical moves. The best route we did was a FA through the right side of the Great Arch, which involved some weird roof coffin block traversing action and was mildly terrifying.