What facts? The facts you can provide show that most people in Thedas respect Andraste. Obviously not everyone. But let's say she is to be revered. That's not enough to support your point. To go from "Andraste is to be revered" to "the staff is disrespecting her" you also need "depicting a religious figure's boobs on a staff is disrespectful". By what Thedas' facts can you support the last one?
Unless it's not about Thedas' facts and you want to bridge that "gap" in your argument with your own morality, simply because you're consumer. By that logic, someone else who's also a consumer can say that such depictions aren't disrespectful. What now? The staff both is and isn't disrespectful at the same time? Nonesense, trying to build this on your own morality, simply because you're a customer leads to such oxymora.
As a consumer, you can have your likes and dislikes. You can voice your opinion on what you enjoy and what you don't, on what you'd want to have more or less. That's fine. That's why the forums exist, it's perfectly welcome to do that. However, jumping from "I dislike x" to "there's something questionable/wrong/disrespectful about x" without any evidence, other than your personal tastes/feelings is simply fallacious.
All I know is my own perspective and discernment of the game world, and it's the same with the OP. The point is that carrying the staff around seems like it would be inappropriate to most people in Thedas in our estimation. The request is that the staff design have some decency to it. I don't think this is a difficult issue to understand.
As for how people in Thedas view it, I think that would depend on the culture of each nation. Ferelden probably would not like it at all. Orlais would not care, or they would complain about it just for show. Tevinter, the ones who allegedly made the staff, would see nothing wrong with it. Or maybe Tevinter made it just to get the goats of those in the white Chantry.
The point is that some players perceive the staff as displaying disrespect, and thus unfitting Inquisitors who revere Andraste, embrace the title of Herald, or at least present the appearance of being supportive of the Chantry. You are of course free to disagree and believe the opposite. Good for you. The OP and I are just posting our 2¢.
I think there are some pieces of evidence that support my opinion, but I didn't think that was the point of this thread. I'm not saying the game should be patched for this, but this is the feedback forum. A place for players to post their... feedback. If you want evidence, fine. But... why exactly? What difference does it make if our opinions have evidence or not? It's just our opinions.