A log in to NAIPS is required so there is a record of your briefing i.e. who you are, the date & time of the briefing, what you requested and were provided with, which was current at that specific time.
CAsA may be keeping the same records incase there is an incident/accident.
In future you may get a gentle reminder (text, email) that you have not visited the site for a while and you need to update, update, update