From the transcript

We wanted to be clear that we weren't sort of throwing stones at the science. We just thought that the, the magnitude of the potential drop was so significant and some of the questions we had of staff were around, you know, has a drop of this level ever occurred? Um, the part of the response— the response was no, we don't think so, we'd have to look. And that when we do phase-ins, it's usually going up, not going down. That was one of the responses.