This is the second such occurrence and it is pretty clear and unusual. The only plausible explanation is that the spirit guides simply took advantage of his coma to wire in the additional language. At least we know now that this explanation is completely possible.
Barber woke from coma speaking fluent French
Car crash victim Rory Curtis, 25, says the accident he was involved in changed his outlook on life, after he realised he wasn't a Hollywood actor