It doesn’t matter what the risks are because the guvmint has signed off agreeing not to hold those companies accountable.
Not arguing but the limitation of liability extends to the makers and the giverment in the event the person takes the jab of their own free will and thus the reason for the waiver of liability. I doubt that protection extends to a university mandating the jab and prohibiting free access to education for qualified persons in the event they decide not to take the jab.