Bug: "Hosted By" text missing site name

I have a bug across all the themes in the 133 Theme pack. The "Hosted By ... " text in the footer isn't displaying the site name, the root of the problem is that the "get_current_site()" function which is being used isn't returning the site name for some reason.

I posted a question on stackexchange and someone came up with an answer, it's just that I can't really be expected to deploy it across all themes, could we see this change in the next update please?

Of course if there is no one else experiencing this bug I would love some pointers to how I can get it working properly!