I'm skeptical that you could generalize the process. But even if you could, it wouldn't make any sense to offer it as a service to startup founders, because you would then control the biggest value creation step. They would be nothing but idea sources, and ideas are worth very little. Instead you would just use your fantastic process to churn out your own products, possibly paying small royalties to people who come to you with good introductions & ideas.
Or let me put it another way: every angel fund, startup accelerator, and VC would love to have a magic way to "quickly and accurately determine if an idea is on the right track". That's what they spend all their time thinking about. Do you really think they're missing something obvious?