10. It appears that Jehovah guided the Christians by means of those who were taking the lead in the congregation. Historian Eusebius later wrote: “The people of the congregation in Jerusalem, by divine providence, received a revelation given to approved men; they were commanded . . . to migrate from the city before the war and to settle in a certain city of Perea called Pella.”
This is speculation by the Watchtower, again.
If this is true then the prophecy was not fulfilled in accordance to what Jesus said. They are taking his prophecy and expanding on it when there is no instruction to do so. If it was necessary, we would have been given more details (I.e, that they would be led to a safe city).
The command was to ‘flee to the mountains’. It was not one specific place that they were directed to flee to, it was not one mountain, it was ‘mountains’. Paella is not a mountain either and therefore falls outside of this prophecy.
The inspired instruction was to ‘flee to the mountains’. What occurred in regards to any settlements after they did so is not recorded in the Bible and therefore irrelevant. The Watchtower is going beyond what Is written and have no authority to claim that they will have instructions that are life saving.