If one sees Dhan Dhan Sri Guru Granth Sahib Ji as Guru, there is no debate or argument. Its clear, a gursikh can't eat meat.
Yet for those who Dhan Dhan Sri Guru Granth Sahib Ji is not #1, they can believe whatever they want.
All four gurbani tuks are very clear, straightforward and easy to understand.
A gursikh of Dhan Dhan Sri Guru Granth Sahib Ji has been informed by his Guru not to eat meat.