its simple, its because this garment gets peoples' hopes up.
1. It's a piece of rare equipment
2. It has 2 abilities on the two ends of the same spectrum in terms of what people want for an auto-attack class.
The result is what you've---> people talking about it and hoping it can be better because of its rarity factor and the good part of the spectrum. Sadly, the actual thing we have here is that RTB outweighs both points above.