You can scream bad faith all you like, but there being no written rule on what is meant by “need” vs “transmog”, and no written rule or explanation of such system.
I have not pretended once. It is not explicitly defined and appeal to self evident truth is a logical fallacy. https://www.logicallyfallacious.com/logicalfallacies/Appeal-to-Self-evident-Truth
I “need” the item to complete a transmog set. I will continue to roll need as long as I am presented the option and I desire it.