I dunno what a Datalog is (To FE: if they're are mentioned on the PM you sent me, I appologize, as I am going to read them thoroghly soon, as I haven't been on the computer that long to day.), but games, especially RPGs will often "lie" to you.

FFVII "lied" about Cloud's history, FFVIII "lied" that Edea was your enemy. If that makes sense.