I'll certainly defer to the specialists on this subject, but I
understand that wood's "needing to breathe" is BS. Modern contruction
methods using wood include saturating it with epoxy.
Probably the most dangerous thing is the enclosing of rot-causing fungi,
etc. If there's no sign of that having happened, then one would conclude
that the boat was properly prepared. Enjoy it, but I'd recommend keeping
a weather eye out for anything that might break the barrier.