Doesn’t the administration at any given time do the same thing? It’s been pretty blatant since Viet Nam and I’m sure it went much earlier than that. The only difference is that they don’t call them clients.
FARA is aimed at preventing clandestine efforts by foreign governments to subvert/compromise our government. Enforcement has been lax to non-existent for a long time, but that has changed in big way in the last few years or so, for reasons that are obvious.
Will the governments being dissuaded from influencing ours include allies such as Saudi Arabia, Israel and the UK? Or will it just be Russia, Iran, and China?
I would personally be in favor of stopping our allies from influencing our government as they do it constantly and blatantly. If you influence it enough, perhaps that's how you become an ally in the first place and how you remain as one.
It does include some of our erstwhile allies but enforcement is obviously going to be focused on our adversaries.