Small correction - if you don't have a product that would display stats in a portion of the "single pane of glass" control panel, it displays an ad instead of a "you don't have this product, no data to see here".

Scummy? Sure ... especially if you don't have a Ubiquiti gateway but only AP's so the top part of the page is blocked out, but it's not exactly "pushing ads at me!" in the traditional sense - e.g. they're not targetting ads, they're not collecting data.