Indeed. The reporting mechanism on H1-B is the LCA that is filed at the begining of the process. It commits the employer to keep paying the worker the specificed wage until the LCA expires on until they notify the Govt that they have terminated the employee.
So employer's advise CIS for their own benefit, noy out of an altruistic motive to keep America free of illegals.
A TN employer who notofies CIS is likely doing so vindictively.




