He's implied that he had more story to tell following part one on the night of the typhoon. But, has since decided to skip it. (He made it sound like this decision was influenced by his followers feedback. A lot of people seem to not care for the slow build up he has been doing to get asuna to the point she will be unfaithful. And want the corruption to happen faster. It's still the same game and made by him, it just seems like content he intended to originally include will not be there.
I understand dropping side stuff if it's not important to the main plot, but dropping main plot stuff seems odd, and i will no doubt find plot holes (Not that they don't exist already.) In any case I'm sure I will enjoy whatever he ends up putting out in the end. But, it will leave me wondering at what we could have had. I'm not upset about it or anything, just sharing what I have seen in comments on patreon and in forums here regarding the speed of his updates and the contents within. He seems to be rushing the plot to make people happy, and the only things that can suffer from that are Fujino himself and the game.
Man, you totally got it all wrong. The reason why Fujino skipped that week during the typhoon is more of a narrative technique rather than abandoning the original storyline.
According to Inoda's blog, we can see that during that week, Asuna completely ignored him and was living a lovey-dovey life with Kirito. If this was a vanilla game, he should have definitely shown some intimate interaction between Asuna and Kirito instead of skipping it. But clearly, this is an NTR game, and skipping that week was a better choice for both the plot and the players. And the subsequent plot continues from the night of the typhoon.
I've seen from Fujino's past statements the difficulties he encountered, as well as his determination and courage in facing those challenges. Fujino didn't get tired of making the game.
I haven't seen any fan mention fast-forwarding the plot either, so this is definitely 100% Fujino's own idea.
Give the guy some trust, bro.