But then the steam buyers are getting a nearly finished game and little risk. The average KS plege was actually $48 so a lot of backers pledged for more, took greater risk(as all KS projects are) and made what's on steam now possible in the first place. If someone is upset about the Steam version not including all that then they're wrong, dead wrong, since the game wouldn't be even close to being as good as it is now without the KS backers.
I think much of what you said is debatable, with some parts being flat out untrue. While we can't know for certain, I would not find it the least bit surprising to learn that Steam Early Access has brought in *far more* in funding than the $1 million raised by Kickstarter, perhaps even several times over.
This game did not need Kickstarter to end up on Steam Early Access; it could have started on either platform first and was very much a game without the funding from Kickstarter or Steam. It just wasn't the scope the developers wanted to aim for. The funding from Steam Early Access has allowed Divinity : OS to go beyond a scope even contributions from Kickstarter could have provided (made evident by the fact Larian admits they've gone over budget). Every dollar mattered.
Simply put, this game would not be what it is today without the funding from either platform, and most of that additional funding likely came from Steam. I don't know why people treat this as a contest of "who deserves more" between the two platforms - had it not been available through one everyone here would have purchased it through the other, as long as everyone was aware of the project to begin with. The "problem" is that more people follow Steam than Kickstarter, and Steam currently gives projects publicity that Kickstarter simply can't compete with.
As for "risk", Early Access on Steam is fraught with exactly the same risks as Kickstarter. There is no guarantee a game will ever come out as advertised or even come out completed as all. I have more than my fair share of games purchased through Steam Early Access that have gone either nowhere or in entirely the wrong direction, and all sales are final, so let's stop pretending the Steam platform offers a risk-free route. This was not a project that was presented as only a hopeful idea when it came asking for contributions, it was already fairly far along in development and the risks for everyone were minimal.
If you want to talk about real crowd funding risks, I invite you to browse through my ridiculously large hangar in Star Citizen.