I have learnt since that the closure of the Sheraton was in connection with the Lebanese situation.
It is of course a laudable objective to do what we can to promote peace there, but it seems Qatar was offering facilities it does not have. ie a suitable conference centre.
I reiterate my point "What chance have those (tourist and tertiary ) industries got when the very few decent tourist facilities we have are just closed whimsically." The fact that its for a good cause does not lessen the impact on our tourist industry.