Maxime Casas authored a patch right before the holidays that promises to drastically improve certain aspects of the imported simulations workflow: Vertex Group Control for the MeshCache modifier.
What this means is clearly demonstrated by the video above provided by Maxime himself: Imported simulations, such as cloth simulations, can now be altered in part, by deciding which vertex group the simulation deform is applied on.
This alteration or adjustment can now happen within Blender, without the need of going back to the simulation software/step and re-baking the whole sim, by for example blending it with armature deforms via weight-painted vertex groups combining the deformation cache with the armature modifier.