What I found interesting, up until the Tiff issue, they were basically on par. The Sun programmer said his code would basically work with anything except tiff. The NeXT people probably knew this was a limitation of a specific library he was using and threw it in to make it less fair.
Though I would say I don't think he was portrayed badly in this video, the point was not that he was a problem, the point was that NeXT's application development environment is better.