Why no one’s funding it

I asked why no one would invest money on this idea, then I played it and my question was answered in short order.
Looking through Kickstarter, I see a refrain come around over and over, that it’s due to simple publisher/venture capitalist stupidity that a given project isn’t already being made. That every single project on there is an obvious moneymaker, especially the successful projects, and that there’s no possible reason other than sheer dogged stupidity that money isn’t being sunk into it.
That seems pretty immediately wrong, though, just on the face of it. I’m not going to say that rich people are smart by definition – I’ve met some staggeringly dumb people with tons of money, for example – but I will say that most successful venture capitalists and publishers don’t stay that way because they’re not good at picking what they fund. If they’re leaving money on the table, there has to be a reason for it.
Fortunately, several of these reasons are pretty obvious to me just at a glance, and I’m not even an investor. So why is it that no one is funding a given game outside of Kickstarter?
The paid mod debate we never had

Here we go with an important point of discussion we’ll never actually discuss.
According to pretty much anyone you ask, Valve recently made one boneheaded move and one reasonable and understandable move. The question is which one came first and which one came second, and that speaks to something interesting going on underneath.
Not oh-so-long ago, Steam opened up the option for paid mods via the Steam Workshop. There were two camps involved – one that was convinced this was utter brilliance and another that was certain it was the worst thing ever. It didn’t matter in the long run, of course, as not even a full week later Valve announced that it was pulling the test program, offering refunds to those who paid, and so forth.
By itself I find this all kind of uninteresting. I don’t have a horse in this race. What fascinates me is the fact that both sides in this particular tempest in a teapot have very firm ideas about which side of the debate is the side of the angels, and the very idea that there is an opposite side seems laughable to them.