There is already this:
G14.232 RECALL: Each LC/amphibian with a Passenger capacity is immediately Recalled when no Passenger unit capable of unloading by itself is aboard it. All Passenger units aboard each ATTACKER amphibian that begins the MPh in a Hinterland hex must take one combined TC at some point (of the owning player's choice) in that MPh [EXC: they must take it while in a Hinterland hex]. This Passenger TC is taken even if the amphibian is TI/Shocked/Stunned etc.; and is resolved as a single NTC (Δ) for all Passengers aboard that amphibian, using the highest current Morale Level among them (and basing that Morale Level on their Good Order side unless all of those Passengers are broken). If that NTC is failed, the amphibian is immediately Recalled.
Its possible the SSR is trying to disallow the LVT(A)2, but not the LVT(A)4.