Why only tongue and extraocular muscle are considered in gse cloumn?

why only tongue and extraocular muscle are considered in gse cloumn?

General somatic efferent

Somatic origin head & neck muscles

occipital somites-tongue muscles supplied by 12 cranial nerve

Pre occipital somites -extra ocular muscesl by 3rd ,4th,6th cranial nerve

Cerical somites diaphragm

Contains 3rd,4th,6th,12th cranial nerve nucleus.