Here's a theory: the extra par 3 at Lido, compared to NGLA, was the Biarritz. From the tips it measured 234 yards, and apparently was harder than hell as first laid out.
Also it doesn't look like Lido had a Sahara, which at NGLA played well less than 300 yards IIRC.
So if NGLA really tipped out at 6600 yards, and Lido at 6700, the playing difference may have been even less than the 100 yards: Lido's extra par 3 was almost like a real short (real difficult) par 4, and at least one par 4 at NGLA was like a real long par 3. I recall in one of the opening matches at NGLA someone eagled the 2nd (11th at the time?), on his way to an astounding 73 or so.
It seems to me the par 73 at NGLA might have played, in some ways, like par 72... and the par 72 at Lido, in some ways, played like par 73.