I dont know shit about WWG. Is it possible his wife had a baby prematurely, leading him to have a lot less time in the short term than he thought he would? It would explain quite a few things, his laser focus to get Chap 13 with all the NTR content out as a huge chunk and releasing the epilogues singularly when he knew he'd have less time.
And that would be completely valid with no context at all, we can assume he probably realized he wont have no time to work on the chapter in the near future because something turned up so he felt like he had to postpone it for months.
But, when I try to apply it to whats been said so far it doesnt make sense at all.
He specifically mentions that he has been "losing large amounts of time" since December, while if you look at the progress reports theres nothing that even hints to a slowdown, except for that one time related to holidays, In fact I would argue quite the opposite has been communicated throught the previous months of 2025 stuff like "Im expecting a March Release", "Its been a brutal wait", "Ive been working non stop" "I plan on releasing the update this month"
"I'll let you know if anything comes up" have been said throughout the months since the start of this year.
You see, nothing here alludes to a slowdown in development pace, so one last thing is left to assume, theres quite a disparity between whats been communicated throught the past months in the status updates to what was actually going on.