what prophecy?
Why don’t you read the article. The author explains it clearly
Moving the embassy itself doesnt fulfill any prophecy but any action involving Jerusalem that brings existential conflict between Israel and Islam to a head is potentially prophetic.
One of the potential flash points has always been the location of the Dome of the Rock on top of the Temple Mount. The Jews have always been extremely sporting about the Dome, giving Muslims unfettered access and keeping away the Jewish radicals so as to keep the peace. But suppose the situation gets really bad then more prophetic events could occur. Rebuilding the Temple after razing the Dome would be one. Resuming animal sacrifices in the Holy of Holies (something not done for 2,000 years would be another.