To be honest, I do think the negative reviews are kind of unfair. After all, all you have to do is wait a few weeks after each release to download and I honestly don't see the difference between waiting for some time until you release an update for free (as many creators do) or releasing a version that has locked content first. As long as the dev makes a full free version available at all, there's really no justification for how this game gets rated.
When it comes to me fe. I usually wait now anyway until a few updates are here, for games that haven't got large updates, so I get a lot of content each time I try this.
I don't think it's a great game in itself, only works as companion piece to Father's Sin.
agree on the 'wait a week or three' part, mainly because there so many other games readily available.. one of them always has some update, like.. every day another one. couldn't even play through all them games on the watchlist in a manageable timeframe, if i tried. after all a day has only 26.5 hours or so. if people do negative reviews over a waittime for a bunch of pictures, i don't even consider it a game review.
a review should cover thigns like bugs, content, quality (visuals, gameplay, plot etc.) and less so the preferrance of a dev to put out a delayed 'fully open' version. one might recheck if revies even match the appropriate rule.
the other part, well matter of personal taste. it's a spin-off, sure, but i haven't even touched the 'main' game and still could enjoy this one here.
more or less a 'quickie' just long enough for a coffee break; i don't expect much more.