Tim Sweeney is a game development legend. He could put handwriting on these slides and people would read it.

Did HN's reverence for John Carmack drop because he dabbled in rockets, instead of doing "proper programming"? Stars can afford to be eccentric.

I wouldn't recommend slides like these to a normal game developer giving a speech. But it's preposterous to claim that it might hurt Tim Sweeney in any way.