So im on Season 5 of the rewatch and this stuck out like a sore thumb. Se5 e11, What Happened, Happened. Miles is talking with Hurley about time travel. The only time it was described, was by Daniel as 'A skipping record'.
Ben turned the wheel and left the island, John didnt know how he did it, because he was none the wiser when he went down, MIB as Christian told him what to do. Then John left the island. The fact there was a wheel was not discovered until Daniel returns to the island to the Swan site (where they dig a tunnel that must join The Orchid).
So at no time has anyone with the information about how the island was moved returned there (albeit in 1977) to tell Miles how the Island was moved.
tbh Im a bit gutted that now I'm watching it without looking for answers to all the mysteries, Im finding a few plot holes.
Though if anyone can point out if I missed anything, then please do tell.