I'm not sure what you are confused about here. The one ordering it higher than them is Imu, not some random Celestial Dragons. So again, the Gorosei were completely aware of it which is why they also say there that they assigned Cipher Pol to the case. It wasn't some random other CDs or Imu that did that.
And sure Oda didn't call Luffy weak at all, but you can't pretend that the general understanding has always been that Luffy's abilities are generally weak in comparison to those of his foes. You can't claim that the majority have thought that Luffy's ability is particularly strong or a top tier devil fruit, so how do you think that's going to change now that it's revealed it actually belongs to a Sun God?
I'm not saying that some random CD ordered it. I know it's Imu, obviously we didn't know him back then. I'm using that as an example of orders coming from above them on matters that they don't fully know or agree with.
They said "We've placed the matter in Cipher Pol's hands" not assign, while normally it might be the same, Akainu's next words indicated that they let them handle it without knowing fully why. That's why they get offended.
I didn't claim that. I know people sees Luffy's abilities as weak, and when looking at one dude who can turn into magma or light then yes they are. I simply said that Oda didn't say "I gave Luffy a weak ability and wants him to use his creativity to beat people" and rather he is still conforming to his previous words and not going against them. I don't think it changes anything. The fruit doesn't make the person and Luffy's fruit is still essential rubber even if it belonged to a god.
Luffy is still the one who brought it to this level. See Enel, Mr 5 or many fruit users who had awesome abilities but without pushing themseleves to the limit, they would never be top tier fighters. Mr 5 was made fun off because he coasted on his fruit without being truly creative with it. Pekmos made fun of over confident Logia... etc. Without Luffy's imagination and creativity, now matte how 'godly' it is it didn't make him top tier by itself.
Nika was called a god, but was he
actually a god? As in a divine being? Skypiea had Ganfall who was a 'God' but he wasn't a god like Zeus for example, was he?
Now though this is my last reply since I really need to go to sleep now