Aaaand...they never actually say why 84% are late. But the title implies
a reason.
Development is tough, it's fraught with problems. Early answers found in prototypes may not scale to production, unanticipated demand may create unforeseen sourcing problems that economies of scale won't answer, etc. I've seen
everything that the major Kickstarter projects are suffering happen in regular product development.
Anyone remember the Sol 20 computer? It was
the computer to have, till Processor Technology got a reputation for shipping long, long after the orderer's check had been cashed. They might still have survived, though. They pulled things together, then blew the deal to become ComputerLand's flagship system. Some guys from a "toy" computer company called "Apple" landed that deal.
I'm in on Ogre Designer's Edition. I'd call it late, but not "Where the ^%$# is it!?"
SJG has been up front on schedule ever since the project went hog-wild. I was disappointed to not have it this fall, but it'll be here about the same time as my Reaper Minis Vampire pack.
Product development doesn't have a schedule, really. Just an unsubstantiated hope based on the experience of the designers/fabricators, etc. And a sudden growth in scale will blow the best-laid plans out of the water. I've seen companies do everything from shipping at a trickle from the prototyping line while building a real production line to building using low-volume methods and warehousing until enough stock to satisfy immediate demand is ready.
I've also seen companies take pre-order money, establish a completely different product line (sometimes under a new corporation), default on the shipments and offer a pittance refund or a "product from stock" credit if anything.
I've seen pre-orders get withheld until after retail stores got their full stock many times. People who bought it off the shelf got theirs weeks before anyone with a pre-order.
All in the "real world", outside Kickstarter.
Personally, I think Kickstarter is great (and IndieGoGo, etc.) Only one product I've backed is on time (so far), but that's the breaks. I don't expect to get stiffed on anything, but on riskier projects I definitely keep my backing to what I can afford to lose.