Sure, that's one way to look at it. Or you can look at the analysis as one of many valid points on a topic that will continue to evolve and raises more questions than answers at this point. My best advice is to "wait and see". These things take months if not years to play out.
Back to post-MBA recruiting. At the end of the day, if an employer sponsors H-1B visas and wants you badly enough, they'll find a way to make that work. I highly doubt that they'll raise your salary above that of your peers (most H-1B visa hiring industries such as consulting and banking hire into "programs" where all graduates start at the same salary) but I'm also not convinced that they'll have to. Of the two proposals on the table right now, one has a sliding scale salary "floor" for exempt status where the $130K number you've been seeing all over the place only applies to "Computer and Mathematical Occupations" (you can read the language of the bill here:
https://www.congress.gov/bill/115th-congress/house-bill/670/text) The other bill proposes a flat $100,000 floor (
https://www.congress.gov/bill/115th-congress/house-bill/170/text), which is very reasonable for a post-MBA role. I'm not going to comment on the politics of the situation
I'm assuming this is weighing on your decision to pursue an MBA in the US?