You're not wrong although it's not immediate. This now starts another legislative process to repeal it, and in doing so will prevent the DoL from doing it again.
The resolution would invoke a legislative process established by the Congressional Review Act, which would repeal the final rule and prohibit DOL from issuing the same or a similar rule in the future.
(https://www.cbo.gov/publication/58965)
You're not wrong although it's not immediate. This now starts another legislative process to repeal it, and in doing so will prevent the DoL from doing it again.
Thank you for this clarification!
(This is why I love GAW.)