It's not suprising that Bloomberg has more business people to push back on the designers/technical staff in this regard.

Having been on the other end of this fight to keep ads to a minimum as to not damage UX, it's a difficult fight over time as the number of 'business people' in the operation grow in size faster than technical teams. Plus the added pressure from the very top to keep increasing financial output increasing.

This is why I tell people that being a good designer often means being good at saying no. Particularly at larger institutions.