I know you're semi-joking, but the obvious answer is that they could've just used system defaults. The Google fonts dependency is pretty silly. It's also a bit egregious when trying to make this kind of bold statement because the fonts are actually hosted on `fonts.gstatic.com` which is sometimes aggressively blocked by adblockers.
Even loading a font face onto their server would have been better for their message and may not have drawn attention at all.
Google Fonts is a convenience (one with a cost), not a requirement for being able to use a specific font on your page.
Yea I was joking. If they liked the font they should have hosted it.