Is there an alternative plausible conclusion? Edward M.
It presupposes assent to rigorous standards of excellence and mindful command of their use. Of course, this requires that we learn self-discipline and the art of self-examination. We must become active, daily, practitioners of critical thought. For example, Guiller et al.
For example, research has shown that 3- to 4-year-old children can discern, to some extent, the differential creditability  and expertise  of individuals. As teachers, too often we allow ourselves to uncritically teach as we have been taught, giving assignments that students can mindlessly do, inadvertently discouraging their initiative and independence, missing opportunities to cultivate their self-discipline and thoughtfulness.
The authors suggest that this may be due to difficulties participating in a brainstorming-style activity in an asynchronous environment.