All Blockade Runners look alike to some people. 😛
That some people is me 😃 I always thought it was the same ship with only parts repainted over the years. Antilles is even the Captain of both (unless I’m making a mistake), fueling the confusion even more.
IIRC, even the ROTS DVD commentary track muddies the waters on this. One can argue Antilles is tasked with Leia’s safety but with a different vessel 20 years later.
If they were the same ship, why not open this sweet floor hatch, and deal with unwanted Imperial boarding parties the easy way? 😉