Something you might want to talk to Vogel/Mat about: for the setup code, they should split that into a bunch of extension methods over multiple files.
Then they can call each extension method, but most of the messy logic is off in different files.
Something like:

container.AddParsing();
container.AddInspections();
container.AddRefactorings();

This might have been done already; not worked on RD in ages.

    This also indicates that we really should batch updates to the UI.

They might want to consider doing that with inspections too, TBH.