Personally, I wouldn't be satisfied with that response, especially the bullshit fisheye photo. That's just proof he has no plans to do anything about all the heat. And, based on the responses here (other than frolic, who seems to get it), he's totally right. You all swallowed it whole.
Ask yourself, how could anyone who has been in pinball for "33" years (I question the validity of that number given his first game was in 1994) be so far behind? Either incompetence, which I find hard to believe, or indecision and noodling. The simplest reason is the latter.
He could solve this easily by just *showing the damn game* without the closeups or fisheye nonsense. Just *show your progress*. Problem solved.
But to him, there's no problem. He's already got all your money, and you're all scared of him. He's got zero motivation to finish these games, or reveal anything.
Perhaps a lawyer's letter might help light a fire under him. Clearly logic and reason don't work.