Not fictional! 
That pic I posted is indeed a modern private T-33 in a Blue Angels livery. However, the Blue Angels did use the T-33 (TV-2 at the time) for VIP rides, etc. from 1952-1954.
This is the original aircraft, not the modern one still doing airshows:
(They also had an SNJ in the 40’s, would love to see someone do that yellow paint job for the Asobo T-6.)
I’m with you on wanting all the display aircraft, though! Especially the Cutlass. I’m hoping Virtavia eventually brings the FSX Cutless up to MSFS. Not the right sub-model, but probably as close as we’ll get! Right now we have the Hellcat, Cougar, Phantom, Skyhawk, and both Hornets. Need a Panther, Bearcat, and a Tiger (another one Virtavia has for earlier sims).