It's increasingly common at companies that have highly standardized/calibrated interview processes. Often, this is for the express purpose of avoiding discrimination. Interviewers have to ask approved questions, measure them according to specific criteria, then express their evaluation in terms of a number and be prepared to justify it. That allows the numbers for different candidates to be compared meaningfully, like to like. The downside is that it's impossible to do all that without taking notes.

I suppose as an alternative you could record the interviews, but then that sort of doubles the amount of work needed for each interview which is also a problem when you're doing a whole bunch of them.