A recent sim exercise had an alarm repeat every couple of minutes during a busy procedure which rightly required the crews to formally acknowledge and evaluate the damned alarm each time it triggered. You don't want to get into the habit of blithely waving off repeat alarms without at least assuring yourself that it isn't something new, or worse, something new dressed in the previously used alert.
Cognitive overload under stress is a huge problem which the designers address by adding more unthinking and contextually ignorant alarms. Kind of like fixing a language problem by shouting.