I have to disagree.Speaking of hypocritical, are you prepared to go through the list of Trek aliens, and their evolutionary plausibility? Let's start with handlebar faces...
This is a fictional show. A species with a 9 year lifespan is more plausible than transporters and warp speed, replicators and holodecks.
I mean...THIS is the issue that causes your suspension of disbelief to falter??! REALLY?
I do find warp speed, transporters, holodecks and replicators more plausible than a nine-year lifespan for a developed species.