If there was a concern about drilling holes in the gear leg for the leg fairing attach screws, they would have never been specified there originally, and/or they would have been deleted when the new nose gear leg was designed, so no FEA on the screw holes is like to happen (see below for reason).
Sorry if that sounds a bit sarcastic.... I don't mean it to be, but it is the reality.
A bit of engineering and physics needs to be applied to understand why these holes are not an issue.
One, would be to understand what the bending loads are along a beam or arm such as the nose gear leg. The bending loads are the highest at each end where the arm attaches to other members (think of the effect that a long lever arm can have to amplify force). The bending loads are the lowest at the very mid point of the arm (that is where the lever arm is the shortest distance to other members where the loads are being applied).
That is why the screw holes are at the very mid point of the leg, vs a pair of holes at the upper end, and a pair at the lower end.
Another factor is the way the loads are distributed through the arm.
In the case of the nose gear leg, when a high upward load (hard landing for example) is applied, and the leg tries to bend, the material along the very top of the tube is being compressed along the length of the leg, and the material along the bottom edge of the tube is being stretched as the tube tries to bend into a curved shape.
The screw holes are purposely located on the sides of the leg, which puts them in the neutral axis of the tube..... the portion of the tube where there is no compression or tension load when the leg is being loaded vertically.
This is an overly simplified explanation.
Go to this reference (or just google "neutral axis") for more details.