Maybe you should read a bit of the thread before making a post...The ending is lacking compared to Leap of Faith, which was made by the same folks from what I can tell. The completed tag does feel off but it's not the only game that got updated after being completed, Monster College did the same thing. It was released with a lazy ending, got flaked, and ended up adding content post "completion". Unlike aaa studios that can ignore the fanbase if you make a living off Pantheon, pissing off all of your customers is a bad idea.
The game is great, just needs a better closure IMO. I'm sure there is going to be another one in the same universe considering that the characters from the two made so far criss cross.
The actual epilogue of the Leap of Faith is still unresolved...
The reason the ending feels like there is no closure is because it isn't a ending. There is still a Epilogue coming out soon where every path will get it's proper closure. Some F95 mod just wrongly tagged this as 'Completed' and refuses to change it for some reason.