When your whole company's profit is up 68% and non of your business is loosing money, I don't see why it's a must to disclose the profit of one particular segment of your business. Xbox and Surface now mainly function as a consumer friendly PR tool for Microsoft. And it's working. The Surface and Xbox product garner most of the YouTube views from any Microsoft related Channels. I know some people who don't have a Xbox or Surface wish Microsoft's hardware will just fail but they are the most important marketing division for Microsoft nowadays. I highly doubt Microsoft will just close the Xbox Division.
MS' primary customers are their business and enterprise customers. It's where they make the prevailing lion's share of their money and will probably always be the case.
You can argue that Surface and Xbox are important to MS as businesses, but they're so far from the most important that those divisions/products could die overnight and MS would hardly break a sweat.
I don't think anyone arguing that things aren't looking so rosy for MS' Xbox division are arguing the division should or will be closed. It's not helpful to the discussion to think in such binary terms (i.e. they're either hunky-dory with nothing to worry about or completely fucked). There's an entire spectrum of conditions in between that will see a business show indicators of the future trajectory of their business between success and failure.