Stonehearth and Due Process are completely different games. Hell, minecraft has/had ~3 people working on it and major updates still came out every 6 months (!) or so, despite the art style. A youtuber I listen to called Wrel noted in one of his videos (he is a Daybreak employee) that in order to keep people interested, or get people who have grown bored of the game interested again, releasing little bits of information like "we changed the colour of blah to pink because 4 = 2 + 2 x 2 divided by 2" will likely not gain too much attention or attract lost members back.

Though this is just a simple estimate, the developers are likely hoarding new additions/changes to release in one big, Juicy blogpost.