should extend to H1b, J class visas and others, and for longer than 6 months, maybe 2 years. Give other companies a chance of getting those people, htey just proved they cannot manage them properly.
Blocking the EB GC applications of an employer that had layoffs screws over the employee, not the employer. If anything, the employer gets to have that employee tied to them for that additional time, regardless of the desires of the employee to move on.