To keep these conversations simple in the future, I recommend the question be phrased in the future as a simple yes/no question that relies on the Department of Water Resources' Economic Analysis Guidebook for definition of the terms. It's not the only source for this, but it is pretty good, and it should be acceptable to Dr. Meral and the Resources Agency since it is their guidebook.
The guidebook is clear about the key difference in benefit-cost analysis and financial feasibility analysis. The key definitions from the executive summary are:
Benefit-cost analysis determines whether the direct social benefits of a proposed project or plan outweigh its social costs over the analysis period. Such a comparison can be displayed as either the quotient of benefits divided by costs (the benefit/cost ratio), the difference between benefits and costs (net benefits), or both. A project is economically justified if the present value of its benefits exceeds the present value of its costs over the life of the project. (page ix)
Financial Analysis. The objective of financial analysis is to determine financial feasibility (that is, whether someone is willing to pay for a project and has the capability to raise the necessary funds). A financial analysis answers questions such as, Who benefits from a project? Who will repay the project costs, and are they able to meet repayment obligations? Will the beneficiaries be financially better off compared to what they will be obligated to pay? (page xii)
The test of financial feasibility is passed if (a) beneficiaries are able to pay reimbursable costs for project outputs over the project’s repayment period, (b) sufficient capital is authorized and available to finance construction to completion, and (c) estimated revenues are sufficient to cover allocated costs over the repayment period. (page xii)
Here is my interpretation of the exchange between Larry Ruhstaller and Jerry Meral about benefit-cost analysis if it had been asked and answered clearly.
LR: Are you doing a benefit-cost analysis of the BDCP or any of its elements as defined by the DWR Economic Analysis Guidebook? Are you doing a financial feasibility analysis?
JM: No, we are not doing benefit-cost analysis. Yes, we are doing a financial feasibility analysis of the isolated conveyance.
I am pretty sure that I have translated Dr. Meral's answer correctly in terms of these definitions, but it would be helpful to get a simple yes/no question and response to this in the future. And if you are involved in these financing and policy discussions, please learn these terms and do not use them interchangeably.