From my perspective, the bug became shallow because the machine world extended the number of effective eyes. The aphorism applied, but just not fast enough as it took too long to get the right number of eyes.

More people would have been harmed had the bug been in production longer.

One unfortunate aspect is that responsible disclosure would have only saved some people, a responsible disclosure would have lead to a notice to migrate seeds and bad actors would have immediately realized seed generation was the root cause and would have swept many folks before they could even see the notice for themselves and get around to migrating.