I hear you. But I think it's really the bandwagoners who give Lean a bad name. It's hilarious when all of these wanna be mark zuckbergs talk about how they just ran these 8 sick A/B tests on what shade of purple button converts the best.

Point of Lean is to think in a structured and rigorous way about problems. Not just to look at A/b results but to always be aware of the hypothesis that underlies any decision.