If the NPC is really off, as it seems to be in BU’s case, report it to the Consumer Financial Protection Bureau (CFPB). I don’t think there is any agency overseeing the NPC, but the CFPB is really doing a pretty good job of looking out for students and would, at the least, shame the school into changing the output of the BU calculator into generating a very low ‘promise’ of aid.
There is no requirement that the NPC be available for transfer students, for example, so the NPC shouldn’t be used as an advertising hook for transfers as it was to the OP. Some schools seem to just do the minimum required on the NPC, using it to show the federal aid and loans, but not really calculating school merit or need. Other schools have added quite a few questions and do a fairly good job of generating a good financial picture for the individual student. My daughter’s school was a ‘good’ one, and in fact the NPC helped me catch an error on her merit award amount (NPC showed higher award, I questioned what she got, NPC was correct).
BU seems to want to use the NPC to attract applicants, but doesn’t include the disclaimer that aid is limited, that aid may be awarded to preferred applicants first, that early filers may get more aid. The CFPB is very good at putting the pressure on schools to at least make the NPC results clear.