Most A/B test results are illusory [video]

I'm not familiar with A/B testing products or services, but based on the talk it seems that none integrate the proper setup of A/B testing described here by default.

It's understandable from the point of view that since most of them are selling to startups with small userbases, they don't want to exactly spell out that 90% of their testing is useless, and they need to get 100x more users to be able to measure anything.

But this seemingly also leaves a huge market gap for a product who would do that, and target slightly more mature companies, and deliver real results.