I don't know if this calculator was good or bad, but the rationale sounds superficially ridiculous. > Visitors who didn't see the calculator were 16% more likely to sign up and 90% more likely to contact us than those who saw it. There was no increase in support tickets about pricing, which suggests users are overall less confused and happier. Of course if you hide the fact that your product might cost a lot of money…
In this case, I do agree that the calculator is a bit daunting if you're not used to all the terms, but what should be done with it should have been an intuitive decision ("what can we do to simplify the calculator?") Not a fan of A/B testing culture that everything needs to be statistically analyzed and proved.