Are you trolling me, or what?
You said it yourself he must have manually edited some values to overwrite the 3D model's limits. Not doing that would be a start. The arm itself should be positioned in a completely different way. Here is a very rough sketch but this is how it should be:
View attachment 3888514
To be honest I would change Sophia's position in this scene as it's not very fortunate and probably caused him to go for this awkward posing. I can see L&P struggling to get a realistic result the way the scene was built.