Molly ships would never have a Bretonian influence.
We do everything we can to distance ourselves from them, it's not only a revolution in the sense that we're trying to push BMM off of us and workers and out of Dublin, but we're also rebelling culturally - look at how we've adopted Celtic culture, as opposed to English.
Any Molly would violently attest that he's not Bretonian, he's a Molly.
Therefore, Bretonian influence has no place in our ships.