Well assuming that you go for a flight from A ----> B with both destinations within the vicinity of the appropriate chart. Then I interpret that as;
"a pilot in command must have access during flight to appropriate documents and charts"
(i)to the route to be flown; and
(ii)to any alternative route that may be flown on that flight
So if A and B are on a VTC why should I carry 1,2,3?
Nowhere in the regs or AIP does it clarify that you need to carry ALL documentation!