The fact is that SEN has a population of 5.4 million living within 60 minutes drive of the airport and provided suitable routes are chosen that is quite adequate to make them a success. The fact that SEN can support an AMS route that offers a capacity of up to 540 daily outbound seats proves the point.
So, just out of curiosity, how many millions live within a 60 minute drive of CVT and why are those millions not adequate to make CVT a success?