It's hard to argue intentions.. But that looks pretty intentional.
I can't imagine anyone just forgetting about a multi-million Dinar Mach 3 interceptor and just letting the desert reclaim it... Especially given that they knew we were making a concerted effort to blow up their air force on the ground.
The restoration shop staff says its a back-burner project.. Memphis Belle is likely to be their top priority for a while. To make the thing presentable shouldn't be a big deal, but the USAF museum usually goes for restoring things to the point they could fly if they wanted to.. Which for that thing will mean taking it apart down to every last screw, rivet, and fastener, cleaning it, and putting it back together.