Not sure if whooshed, but just in case anyone else doesn't get it, you're not going to see Comic Sans unless you load it from a Windows machine or a Unix distribution that's installed the font. IOW, it's just a gentle jab at Microsoft and perhaps those distributions that install the MS fonts. Technically that is promotion in name but not spirit.
You are correct. I assumed MS Office put it there, not even considering that Comic Sans would be on OSX by default. Hah! It's an even more sublime statement now, as only the untainted free distributions out there don't see it.. and it's also directed at web hipsters, but the result there appears to be unintentionally ironic.