Perhaps Hearty Meatballs thinks that NCL should have refused FR expansion plans?
Of course there is a risk that FR will scare away U2 and LS but judging by the prices that all companies are charging on popular routes to the likes of PMI and ALC, FR must think there is some opportunity to grow the market. FR do not generally take U2 head on on the same routes, they will have a business case behind this - they are taking on U2 here, not some small time operator who they can crush on price.
As for the fees, I thought it was generally accepted that regional airports make most of their money these days from non aviation activities such as car parking and retail?