In-ear monitoring gives performers control and reduces stage volume, but it can also make musicians feel isolated from the band, the room, and the audience. Immersive monitoring systems aim to bring some of that space back.
Klang-style spatial monitoring lets performers place sources around a three-dimensional field rather than hearing everything flattened in a traditional stereo image. That can make the monitor mix feel more natural and less fatiguing.
For live engineers, the larger point is that monitor technology should serve performance. A technically clean mix is not enough if the artist feels disconnected.