Even if Ocampans typically give birth to multiple offspring at once, the elogium being a once-in-a-lifetime thing is quite problematic, since there's always a chance that an Ocampan woman could die from disease or accident before it ever happens, or be trapped somewhere away from any biologically compatible mates while it happens, etc., etc.
Which is no problem if we read the episode as establishing the phenomenon as simple anti-virginity. If you do it when the time comes, you can do it again as many times as you please (as nothing contrary is stated). If you fail to do it, you can never try again (as stated).
Accidental death would have no major effect on birth rate in such a case. Being stuck in an elevator for the crucial hours would be comparable to death in its practical effects, though.
No, I'd never want to hear that "covered". Implicit trumps explicit if there is no contradiction. And it's with the explicit that the writers can go wrong, not with the implicit, which is our domain.
The problem is that the writers didn't think when they came up with those weird abilities for the Ocampa.
I hardly think this is either a problem, or something to be avoided. Trek lives and breathes "coming up with weird". Consequences are the interesting thing that emerges later on, enriching further storytelling.
The audience "didn't notice" when Spock compared himself to salmon, and then it turned out he didn't die with his first and only spawning, and never was supposed to, his spawning being cyclic instead. Good came out of that, much better than what the "Amok Time" intent was.
Good might have come out of the elogium, too. Only, Kes left before the writers got around to that.
Timo Saloniemi