Does "anthropically justified" modify "luck"?

Context:

Nevertheless, it may be that the origin of life is not the only
major gap in the evolutionary story that is bridged by sheer luck,
anthropically justified. For example, my colleague Mark Ridley in
Mendel's Demon (gratuitously and confusingly retitled The
Cooperative Gene by his American publishers) has suggested that
the origin of the eucaryotic cell (our kind of cell, with a nucleus and
various other complicated features such as mitochondria, which are
not present in bacteria) was an even more momentous, difficult and
statistically improbable step than the origin of life. The origin of
consciousness might be another major gap whose bridging was
of the same order of improbability. One-off events like this might
be explained by the anthropic principle, along the following lines.
There are billions of planets that have developed life at the level of
bacteria, but only a fraction of these life forms ever made it across