Use only one Life Event?

Our Benefits office is going to a third-party enrollment platform.  That vendor will send all enrollments and benefit changes to our OAB module as an interface file.  They are thinking about not using all the life events we have set up in OAB, but instead to use one 'Administrative' life event for all enrollments and enrollment changes.  Please advise of pros, cons, what to consider, what to watch out for, etc.  Thank you very much in advance!