System Memory differences between the definitive editions on Steam

The AOE 2 DE Steam page says the recommended system memory for this game is 8GB, on the other side, on the AOE 1 DE they recommend 16GB. Why?

With the new Xbox Studios now in charge of the development, Is the first one going to get optimized before launch on Steam and get the same requirements of the second one?

I think you get Zoom x4 option with 16 Gb, maybe Age 2 has different zoom engine that doesn’t require it. (Age 2’s zoom seems better than Age 1’s that was with ‘levels’ and blur issues on zooming in)

I hope they standardize the games on this point.