If you look in more detail BOH-PMI did very well in September 2018 with just shy of 18,000 pax handled. Massive volumes for a single route and beat CWL-PMI.
Re CDG & AMS, I think an LCC serving these destinations a few times a week would suffice given the services from SOU-AMS. I think where BOH could excel could be on routes like Doha, Abu Dhabi & perhaps Istanbul for global connections.