You use words like "intention" and phrases like "this robe *should* be the best for me." Those mean nothing except that you are trying to bring some sort of authority to your desire to have the robe changed to how you want it.
When Marza says that he has talked to the other devs and we decided not to use your suggestion, that means you did have communication with us. Unfortunately, instead of saying "well they looked at what I wanted and communicated to me their decision", you decided that this means you must go on a crusade to right the horrible robe injustice and get detailed and explicit proof of why this robe is no longer the best robe for casters. Worse yet, you keep talking about how wrong it is for all the other devs to change another's creation like there is some sort of sacred space around each devs work that even the collective of all other devs can not touch. That sort of idea is part of why we are in this mess at the high end to begin with.
So that quote is actually extremely salient. You wanted it changed, you were told no, and you decided to start complaining about communication.
You can talk about rarity all you want, but no item should be the best in a slot for every class. That is the Thaz Syndrome, and has been well shown to be horribly problematic.