I wouldn't exactly call it comical. It's just that it's a political term rather than a financial one. Deciding to take a profit this year is an important signifier for the investors, who all must have the same question in mind, how long is it going to take for their investment to pay off.

As long as Musk decides to roll all revenues back into operations, investors get nothing. Musk has a reputation as someone who doesn't really care all that much about his investors, this is a move carefully designed to massage that image. Musk still doesn't care about his investors, but throwing a little cash their way keeps their voices from building to a crescendo.

As for what humanity is getting out of the deal, they already got the Model S and X, it's soon going to get the 3.