Almost everything involves some subjectivity. Business decisions included. Delivering crap product with faster feature turnover is a subjective decision too, you're only guessing if it pans out or not compared to doing it better but a little slower. Someone will say, "I have A/B tests that show". But I'm willing to bet than it most cases, A/B tests will show you whatever you want to see in them, as most people don't have necessary statistical background to correctly run or interpret them (and page optimization companies sometimes actually exploit this against their own customers).