Wrong. This is evidence of a cheaply desigined output circuit. There are many jacks that include muting switches. They are spring loaded, and when contact is lost, a muting circuit is enabled.

And, if you are disconnecting the source side first, that is your problem not the jack's. Any analog connection disconnected source side first could result in this behaivor. It can be mitigated by some circiut on the amplifier side that detects a loss of connection. The technology exists, some cheaper electronics just fail to implement it.

Noise on disconnection could happen with a digital circuit too if the designer of the amplifier/speaker fails to account for that case.