The legislation above does eliminate one common form of legal corruption which blocked enforcement and other legal actions by obfuscating who you need to bring action against.
In many cases, hiding the identity of the actors behind a shell corp was sufficient to hide the crime. e.g. a foreign government could donate to a super pac by way of a shell corp. In order to prosecute such behavior one would need.
1. The list of all donations
2. The ownership information of all donations
I can't exactly send out a mass lawsuit against all donors asking them to prove that they are in fact American.
In many cases, hiding the identity of the actors behind a shell corp was sufficient to hide the crime. e.g. a foreign government could donate to a super pac by way of a shell corp. In order to prosecute such behavior one would need.
1. The list of all donations 2. The ownership information of all donations
I can't exactly send out a mass lawsuit against all donors asking them to prove that they are in fact American.