I'm not sure I entirely remember what the sun frequency was like over the summer, but I *think* what has happened is
Faro: +2 weekly rotations
Malaga: +2 weekly rotations
Alicante: +1 weekly rotation
Barcelona: +1 weekly rotation
Amsterdam; -1 weekly rotation
It will be good for airport numbers (c. 2% annual growth from the Aer Lingus summer programme alone). Not so sure it will be great for inbound tourism, with a strong inbound route reduced, while ones that send tourists abroad are increased. I suspect the Amsterdam changes may be a means of encouraging more connecting passenger through the IAG hub at LHR rather than because the Tuesday services don't carry decent numbers in the summer.