It's an all-or-nothing cutoff wall, so that if an employer schedules someone for 29 hours/week instead of 30, (for example) they don't have to provide anything.

It's an all-or-nothing cutoff wall, so that if an employer schedules someone for 29 hours/week instead of 30, (for example) they don't have to provide anything. And so of course 90%+ of the companies that can short on this, do. It's as awful as you think.