IMO the real issue is less that it’s unfinished and more that the product at its best doesn’t seem to live up to its lofty expectations (disclaimer: have not played it and don’t intend to until it goes on sale, just watched others and read a good number of reviews).
From what I understand it’s a fairly anodyne action-RPG, with routine quests, an underwhelming plot, and not too many interesting choices for character development - nothing bad, but nothing great. It doesn’t have the script of The Witcher III, the humor and satire isn’t as clever as Watch Dogs, it doesn’t break new action-RPG gameplay ground like Fallout 4, and as an open world city it’s a shallow clone of a GTA game. And it doesn’t contribute anything particularly unique itself - outside of all the hype, the consensus seems to be that it’s a fine choice if you’re looking for a solid action-RPG, but not essential. Which would be fine if the game were finished and appropriately hyped! But neither were the case.
People would be more forgiving of the bugs and even the unscrupulous marketing if the game was legitimately extraordinary and unlike anything else out there - the viral buggy footage would be offset by viral stories and videos of cool things in the game itself. But those cool things just aren’t there in Cyberpunk - it’s a B+ game, and doesn’t seem to have much to offer compared to its competitors.