Qatar has been pouring money into colleges in the US, which promotes anti-Semitism.
Qatar tries to position itself as some kind of mediator, quietly MugWump in behaviour. I wonder what Saudis think of Qatar.
As for the airplane, there are other ostentatious ones in Arab states, that one has the full upper deck option - is a -8 which is fairly new. Aft fuselage has several bump antennas. Apparently the Qatar regime decided it wasn’t worth the upkeep for what may have been little use.
I hope Trump has excellent security on his forthcoming trip. Will Arab states accept F-35 escorts? 
(Suicidal ramming is a risk.)