Cisco and Huawei can be subject to same set of regulations aginst having backdoors etc. But instead of general regulations and measures, what is promulgated is merely action against 2 particular firms, that is a targeted/particular regulation.
Weather such targetted/discriminatory regulation as opposed to universal regulation is a legal action is a valid question.
This particular law seems to give grant too much discretionary powers to the Executive, which never is a good idea.