It could tarnish the indies.
We'll probably see more of this in the future (not on GOG, hopefully, but as a general phenomenon in the business).
With free (or cheap) design tools and middleware, crowdfunding, and easy access to distributors even for self-published products, it's currently easier than ever before to overestimate one's ability to create a finished game, or raise adequate funding. People can say what they will about publishers (no one really likes them, they are often seen as unnecessary greedy middlemen, and there are cases where that's actually true), but it's often _not_ a bad thing to have a project overseen by someone who knows how finish things, who can spot problems in the production process at an early stage, and who can make necessary cuts in time, even though they hurt.
There have always been myriads of failed game projects. However, ten years ago, those would simply have vanished, or perhaps released as freeware when the devs gave up. Today, it has become viable to throw such products on popular platforms, riding the wave of indie popularity, and wring some money out of a project that ought to have been either completed or canned.
I wonder if distributors can protect themselves (and their customers) against this. Obviously, distributors can't _possibly_ play all their releases to the end, to check whether they are as completed and self-contained as the publisher may claim. In fact, the industry standard is to not playtest releases at all, and simply check whether they run - GOG is probably the distributor that does the most playtesting in the entire business, but it's just impossible to do it for each and every product. But I wonder if it might be possible to put a clause into the contracts that obligates publishers to inform about an incompleteness of the game, this way they would at least have good leverage to do something for the customers when an unfinished game slipped through. And, if we _are_ looking into a future where unfinished "grab the money and run" releases become more common, then being a shop with a reputation of protecting their customers from such shenanigans might prove to be a useful asset.