Akaal Purakh is not within the bounds of right and wrong. Everything is in his Hukam, yes. The Mool Mantar is the essence of Sikhi, that's also true. But you forgot about the last word in the Mool Manatar , 'Gurprasad', "with the grace of the Guru". Gurprasad is achieved after submitting to the Guru and following the bachans, hukams, and dictums given by Akaal Purakh via Gurshabad-Dhur Ki Bani.
We accept everything is in the Hukam of Waheguru and Waheguru emanates within all, However, that doesn't mean we accept all actions, beliefs, and people without any regard to morality, ethics, and utmost Gurmat. The statement you made would directly conflict with certain places in Bani and Hukams of Guru Sahib Ji.
For example, a criminal commits a crime. Now, we see that person as a human being with equal potential and Jyot. However, that doesn't mean we stop using our Bibek Budhi and apprehend that criminal or legally restrict him from being in certain places and engaging in certain activities. This is to ensure public safety and assure oneself that the likelihood of a crime is decreased.
Now to further elucidate my point, there is a criteria for the eligibility of doing certain sevas, and holding certain sanskars such as Degh-Panchamrit Karah Prashad, langar seva, Panj Pyare seva, Granthi Seva, Amrit Sanskar, Charan Pahul sanskar, and Anand Karaj Sanskar. For example, in a military inauguration ceremony, there are certain requirements for being inaugurated, such as being a soldier of a certain rank. Now would it be logical and practical for a postman or a non-government or non-military personnel to partake in such a ceremony? Definitely not. It doesn't mean that those people aren't equal or inferior. They simply do not meet the criteria and logically have no service or place there. In that same line of logic, ceremonies such as Anand Karaj, Degh-Langar preparation, and administering Pahul have requirements and criteria that need to be met.