Your reactions to the interview methods appendix will be shaped by your epistemological priors, i.e., how much you think it is possible to learn through human participants research. If you believe we gain significant insights from such research, at first blush having more information about the interviews that Bleich conducted, and more of the raw data available to you, are likely to make you more persuaded by the argument. Beyond that, your evaluations will depend upon whether you wanted more or different kinds of information about the interviews, and whether the additional information Bleich provided about his cited interviews made you more confident in them, or potentially less confident. If you had both reactions, why was that the case?