He should add the option to start mid game or late game, or export your decisions & findings so they can be imported with each new update.
Playing each new version over & over again just to see the new content is tedious because it's RPGmaker which takes forever. Renpy games you can just hold CTRL to skip.
Now, if he released the game COMPLETED and you played through it one time, that would be fine, RPGmaker is perfect for that scenario. But when you're playing over & over for each new content update, it's very tedious.
The dev is clever though and a very good programmer, he could solve this dilemma if he wanted to. The way he's made the game is unlike any other RPMmaker game I've seen.