I make of it the fact that "synthesizer" is faced off against "symphony orchestra". I fail to see why we get the age old "blame it on those fussy americans" style attitude in that quote when we're talking about Hisaishi getting a chance to go back to his original score with a better budget, in an age that has rightfully ditched the synthesizer for the godawful thing that it was.
The fact of the matter is, regardless of whatever Disney told Hisaishi they wanted, he went ahead with it himself, and you cannot discount the possibility that what they wanted was also what he wanted (I'm not hearing the abuse of synthesizers in Spirited Away or Howl's Moving Castle). Therefore, it's an authentic Ghibli soundtrack and if it's bad, it's their own fault. Not that it actually IS bad, unlike say, Anna "Medium Density Fibreboard" Paquin's approach to voicing Sheeta.