LTNman -
Your maths are spot-on, and I agree there could be a problem with 16 EZY night-stoppers.
But all the tour operating aircraft (BY, AMM, most MON, MYT etc) are utilised at night, returning between 0000 and about 0700. In my view, the crunch time would be at about 0600-0700 when the night stoppers are getting ready to depart and being joined by late arriving night charters.
The terminal will be pretty chaotic then too. When are TBI going to open the upper floor of the terminal?