I'd have to go check the Final Cut version. I certainly remember a lot of unvoiced prose in there, but it's hard to know what is included as "script" of that, or what percentage of each game's reported script is voiced.

For what it's worth, the number I see out there for Baldur's Gate 3 is two million words, not one point three. That's still twice as long, and the points about cast size, length and animation definitely stand, as does the overall point.