Hahahaha! He actually chickened out!! He probably gave the July 14th date, thinking he'd be able to throw something together that quick to shut everyone up. Then, after not doing any game development for 2 years, he didn't have the chops anymore.
I bet he had something ready, and it was absolute garbage that even his most pathetic simps would see right through. Sarah probably had a 3rd arm coming out of one of her tits, and the script went on an infinite 30 seconds into it. He was so close to just putting that out and making excuses, but figured he'd lose less patrons if he just disappeared.