This really doesn't seem an issue, even less so if you assume a unit is a measure of weight, not of volumne.
Sure you could increment the size of each passenger commodity by one without much fuss but times 16 is simply too much, each VIP would require 80 units of space compared to the current 5 meaning a full sized liner without armour could only carry 52 (4,215 cargo) which is absurd.
Is it really worth gimping the entire passenger system (OS&C and IDF mainly) just to satisfy an oddity of cargo in a mod where pirates can build warships equal to those of House navies?
