What kind of company doesn’t want to pay $5 per month for a paid workers plan for their website?

The kind of company that normally is well within the free tier for years until their product is unexpectedly part of a news cycle.

In all likelihood the site being down right now is actually a PR win.

Companies that focus on product and not “investor value” through nice looking working websites

A lot of non-software businesses probably outsource their websites to some bottom barrel consultant in LCOL countries.

That, or they're such a small business that they never expected one of their random products to be HN hugged to death.

It probably worked fine until today, and will be back to working fine in a few days.