Equally important??? Invitations:maybe, request to refrain: no. It seems to me that sacraments such as baptisms, weddings, ordinations, and maaa are public for a variety of reasons. An expression our communal nature as a church, assisting in evangelization, church buildings themselves are open to the public, etc. Adding all of these up, it is a very important ideal. I would go as far to say, that not understanding or even knowing that they are public events implies a lack of complete understanding of the sacrament itself.