What's wrong with retail banking being retail? The office where you do the paperwork isn't where they keep the money, it is a customer service center for your benefit.
Nothing necessarily. There isn't even much wrong with them selling car insurance. But the strong emphasis on upsell gives me the impression that my banking is not only incidental to bringing me in and selling me insurance, but that the banking operations of a bank are not bringing in enough profits to satisfy shareholders. Maybe even not enough for survival.
If a bank can't be profitable (enough) being a bank, or needs to chase other retail markets to shore itself up, then that's a problem, given the role of banks in the economy.
Or maybe it's just change. But I think it's worth noticing.