Well I can! :diablo:
All plumbers worth their salt refer to them as “ejection” seats. This is based on the following principle: ejector systems remove, jettison or release their attachment/content (eg Ejector Release Unit (ERU) whereas, ejection relates to a device that removes itself An “ejector seat” would eject it’s contents (occupant) and I would surmise that MB used the term because they refer to the complete seat installation which includes the ejection gun (which ejects the seat!).
IYAAYAS
Bang goes another theory:D:D