I guess it's opinion, but these are both "soft" checks, in my eyes. To me, "prevent" means it's not possible. These solutions are external checks, rather than "

I guess it's opinion, but these are both "soft" checks, in my eyes. To me, "prevent" means it's not possible. These solutions are external checks, rather than "it literally can't work". In our case, it literally could not be allowed to work.