Spiritually we don't need the parchar of kachi bani of gita from our stages.
Thinking a bit more politically, there are crores of dalits, kabirpanthis, sikligars, vanjaras and many other OBC tribes who are prospective candidates of Sikhism.
These so called lower caste people hv problem with gita.
https://www.deccanchronicle.com/141220/commentary-op-ed/article/gita-and-obcs
Even the great leader of dalits Dr. Ambedkar has written against gita.
https://roundtableindia.co.in/index.php?option=com_content&view=article&id=4347:essays-on-the-bhagwat-gita-philosophic-defence-of-counter-revolution-krishna-and-his-gita&catid=119:feature&Itemid=132
By doing parchar of gita from our stages, we will only be alienating ourselves from these crores of people who r very prospective candidates to become Sikhs.
Some of our parcharaks just to show off their scholarly skills start quoting from gita or vedantic texts. They r harming Sikhs spiritually and politically.