The present seating configuration on the website doesn't have to match the type that actually initiates the routes as equivalent seat number changes can easily be notified. The Jota seating configuration on the RJ85 is 95Y, six abreast reducing to 5 abreast for a couple of the rearmost rows.
Jota wouldn't be abandoning their existing niche charter markets if they expanded to take on more general ACMI work and they presumably wouldn't take on any contracts that didn't provide a decent margin.