Is it conceivable that all those illustrious scholars who narrated and explicated Al-Busiri's poem, Al-Burdah, were unaware that it contained shirk or kufr?

The poem "Qasidat al-Burda" contains exaggeration and praise that are forbidden by Islamic law, as the Prophet, peace and blessings be upon him, said: "Do not exaggerate in praising me as the Christians exaggerated in praising the son of Mary. Indeed, I am only a servant, so say: Allah's servant and His Messenger." There is no harm in reading it for those who can distinguish its sound parts from its unsound ones, and the reward for it is according to the intention and the attainment of truth. The dispraise is limited to what contains a transgression or a forbidden act, such as exaggeration. Examples of this include Al-Busiri's saying: "O noblest of creation, I have none to seek refuge with but you, when the general calamity befalls," and "For from your bounty are this world and the next, and from your knowledge are the knowledge of the Tablet and the Pen." Some trustworthy scholars may read and memorize it, while acknowledging that some bearers of knowledge affirm the transgressions within it. The important thing is to attain the truth, conform to the Sharia (definition), follow the Sunnah (definition), and the path of the Companions who praised the Prophet, peace and blessings be upon him, without excess.