I think some stuff got lost in translation (Malay-Chinese-English) with the "alright good night" reporting.
What Malaysian officials were being asked to confirm was that there was no communication from MH-370 after "good night" at 1:19am. They confirmed. But such statements tended to get reported as confirmation of the exact language "Alright good night", which probably wasn't really being asked or answered.
Now, since day one, Malaysian officials have not been transparent or forthcoming. But every new shift in the story isn't because they previously lied or blundered. Sometimes it has been, but sometimes it has been more tangled.
What Malaysian officials were being asked to confirm was that there was no communication from MH-370 after "good night" at 1:19am. They confirmed. But such statements tended to get reported as confirmation of the exact language "Alright good night", which probably wasn't really being asked or answered.
Now, since day one, Malaysian officials have not been transparent or forthcoming. But every new shift in the story isn't because they previously lied or blundered. Sometimes it has been, but sometimes it has been more tangled.