I believe, if only one FMS is installed, due to the possibility of a map-shift, SIDs and STARs must always be backed up by raw-data. Thus probably the Fokker has only one Flight Management System, which rendered it unable to 'legally' fly the SID without the raw-data.
As far as I know, the same also applies to RNAV arrivals and departures, i.e. can only be executed by aircraft with dual and independent FMS/FMGC.