Granted, those games you mention we're given significantly lower scores, but as far as FF's went, the media was in bed with SQUARESOFT, and as a result the reviews those games routinely got were impecable. The same happens with Famitsu in Japan. It's as if the specializaed press had signed a binding contract to glorify everything and anything FF. Vagrant Story did pretty good, too (perfect histerically happy red face score, if I remember correctly), albeit this is a fantastic game.
there was only 4 FF released during the PS1 era and one of them was a spinoff. I'll giv e you Famitsu, they have been screwed up for years. But its not like they give everything with the name Final Fantasy perfect scores, thats simply not true. Dirge of Cerebus, Crisis Core, FF 11. Hell Mystic Quest. IMHO those FF games that did score high derserved it, except for 13, that shouldnt even be in the 80 range 77 the highest