If the observer is distinct from Alice, absolutely. If the observer is Alice, nothing needs explaining in either case.
To put a bit of a crude metaphor on it, if you were to pick a random number uniformly between 0 and 1,000,000, and pre-commit to having a child on iff it's equal to some value X - from the point of view of the child, the probability that the number was equal to X is 100%.
Apologies if there's something more subtle with your answer that I've missed.
If the only observable outcome is the one in which we got that extremely lucky, then it doesn't need explaining. You only can observe outcomes compatible with the fact of you making an observation.
If the observer is distinct from Alice, absolutely. If the observer is Alice, nothing needs explaining in either case.
To put a bit of a crude metaphor on it, if you were to pick a random number uniformly between 0 and 1,000,000, and pre-commit to having a child on iff it's equal to some value X - from the point of view of the child, the probability that the number was equal to X is 100%.
Apologies if there's something more subtle with your answer that I've missed.