I agree, that would be a workaround, but it isn't intuitive. I'm glad you suggested it though as it brings to mind another really good point about needing to be able to review Notams on the Airport Info page.
While doing a flight plan, I like to look at each airport along the route that is either a waypoint (for filling/draining tanks) or a potential diversion field. Using your suggestion, I create a flight plan, save it, file it, then get the briefing. In the briefing I find that two of the airports have Notams that indicate a critical xyz is not available. Back up, create another flight plan, save, file, brief only to find that one of my chosen alternative diversion field also has a critical notam.
Which brings us back around to suggeting that we get Notams on the Airport Info page when we are not connected to an ADSB source.