If memory serves, the reason the dev went with the larger update schedule, was because before he had been doing several small updates, like once a month or so, only for a lot of people to complain that these small updates, weren't really adding anything of substance to the game, and it was starting to cause a lot of issues with his supporters. (Maybe some were quitting support? I dunno). Regardless, it transpired that the developer decided for various reasons, that it was better to do larger updates, even if it meant they'd go no contact for several months at a time, as this update schedule has produced better retention of users.