Why would Russia send a recovery ship if Moskva carried only conventional weapons?
Short answerA recovery attempt can protect sensitive equipment and prevent others examining it, while Moskva's upgrades had their own institutional problems.
NotesA recovery operation could deny opponents access to sensitive systems and physical evidence. The concern extends beyond conventional weapons because communications, sensors, and other equipment may reveal capabilities or weaknesses. Moskva's troubled upgrades also point to wider problems in Russian naval modernisation and procurement. Recovering what remains would therefore serve intelligence denial as well as salvage.