No doubt the reason was security; the Israelis have banned people from most holy sites in Jerusalem, undoubtedly out of fear of a terrorist attack from Iran. They can't afford to have a lot of people bunched together.
The Italian Foreign Minister protested the move bitterly, calling it "an insult to religious freedom". You know what is an insult to religious freedom also? A suicide bomb that KILLS you so you can't worship as you see fit.
Benjamin Netanyahu said his government is working on a security plan to allow the Church to worship at the Holy Sepulcher during the Triduum, the three holiest days of the Christian year (Holy Thursday, Good Friday, and Easter Sunday).
Naturally this story tries to act like thos evil Joooosssss are just punishing non Jewish folks, even though they have severely curtailed their own religious practices (like only allowing fifty visitors to the Wailing Wall per day).
This is a common sense policy and anyone who says otherwise is full of bologna - or beef brisket if you prefer your Jewish deli meats.