Well, I certainly would not like to stay in a room next to or opposite to a party with 30 people.
What this story says about the W is - they are more than willing to take the risk of inconveniencing other guests in order to please a high-spending suite guest. Turns out though that the OP has limited budget. So things just don't add up for the hotel: they risk noise complaints/might have to compensate other guests, they risk higher cleaning costs/damage to the room, and the OP wants to bring in outside food?
I agree that the advertising was misleading, and the hotel should somehow compensate OP for this, but I can very well u derstand why they don't want this business.