Answers on a postcard please....
Lages is a military air base, operated by the Portuguese air force. They allow public transport use but they operate under different sets of standards and what can be U/S and not and for how long. .
On same subject , using airports for ETOPS diversions does not mean they have to meet all airline requirements . Basically all you need is a good runway long enough to perform a safe landing . The rest is a bonus. Narssasuaq comes to my mind.