The Jabba's Palace scene was important. However, the 3 other ships were not. There was no point to mention them if all that was gonna be said was that they were destroyed by the Coalition. The intro wouldn't really flow that well if they were just put in there just to say that they were destroyed. However, the other 5 are mentioned b/c they made it to the Sirius Sector. Even though the Hispania was damaged, it still made it (barely) and produced the two most powerful pirate factions of Sirius.
Carlos Rivera: Corsair Brotherhood Pirate - Retired, shifted to Tripoli Shipyard's Research and Development engineering teams Anthony Cameron: Guild Core Bounty Hunter - Killed in Action, committed suicide after being trapped in Omicron Minor following its destruction Juan Ruiz: Outcast Ghost of Razgriz Pirate - Killed in Action, killed by the Sirius Coalition Revolutionary Army during Bretonian piracy raid Michael Winchester: Liberty Security Force Agent - Missing in Action, likely killed during Rheinland espionage mission or trapped in Rheinland Space Eric McCormick: Order Pilot - Retired, shifted to planetside training of new recruits