Writing posts takes time and energy. Sure, it would be nice to have more frequent updates, but the author has been posting on Kickstarter approximately bimonthly (April, June, and August), and I think that's enough. I don't want to pry into the author's personal life, but they mentioned a family emergency in the April update, and it's possible that life hasn't been good to them lately. I'd rather give them the benefit of the doubt and trust that they're doing the best they can, instead of assuming that they don't care about keeping their fans notified.
I get where you're coming from, but it's been half a year. Kickstarter Backers contributed more than 10.000$. The author has an obligation to them, and bimonthly updates that aren't even regular just don't live up to that obligation. I'm not even talking about having to speed up the progress, just about posting "Sorry, didn't really get anything done this month." once a month. Besides, nobody is accusing them of not caring about keeping the fans notified. Quite the opposite, this thread is full of people just wanting to support the author.