OK, sportsfans, we're here: the part about explaining to normies wtf the hoo-haw is all about… try to be informative in addition to the 'oh, there WILL be I told-you-sos', iffn ya can muster it
Because they have different USSS protocols than ex- and sitting POTUSes and VPOTUSes.
Bush family was told there would be no Caisson/Riderless Horse honoring GHWB as they expected, which means Bush Family Protection was OVER, hence the shocked faces.
….indeed….