What would an easyJet and a Ryanair departure do to the terminal? At 186 + 189 that's 375 seats, or 5 x Q400s in olde world flybe terms. Now if you did have 5 Q400s and/or ATRs boarding at peak morning rush and and only the two jets above in addition, that's equivalent to TEN Q400s at once. So your BAU props and the beginnings of wished for loco business, what does that do to your CX? (customer experience)
Basically what they're chasing needs a new terminal for jets and not just a longer runway. IF that's what they need.