Sorry my ignorance but AWS is not unreliable? I hear all time (ie, here in hknews) that is down and that lost of data in catastrophic ways... or things have imp

Sorry my ignorance but AWS is not unreliable? I hear all time (ie, here in hknews) that is down and that lost of data in catastrophic ways... or things have improved. Plus, look like more complex, so I assume, more things to break...