Among other things the "latch" that secures the connector in place (both to make sure the fit is tight and to avoid accidental removal, especially in high volta

Among other things the "latch" that secures the connector in place (both to make sure the fit is tight and to avoid accidental removal, especially in high voltage modes) is a part of the plastics of the connector on the charge cable in CCS1 and under human mechanical operation but a part of the connector design on the car itself in NACS and firmware operated. It can be too easy in rough removals to accidentally break the latch on the CCS1 charging cable (and busy car owners may not be careful enough to avoid the rougher removals) and it may be dangerous to operate with a broken latch so some of the software is (usefully) over-cautious about that. Even with the gentlest of usage by people, it's still a mechanical part prone to slow wear and tear from repeated use.