Sorry Bruce, I'm not sure what you're getting at?
Although the flight planner in FS9/FSX is not the best, it can be worth using particularly if you use an external program/website (eg Virtual Dispatch) to generate a flightplan then transfer this into FS9/FSX and with this update you're much more likely to find that the waypoints will be recognised. Personally I find that a useful facility for aircraft that don't have their own FMC and/or nav database.
As with everything, if you don't want to use it you don't have to.