Yeah, same. Their plans included a number of active screens/supported devices a at a time. It seems pretty ridiculous to charge for the number of screens but then put restrictions on where those screens are.
If you don't want people sharing their login with people, then maybe sell them a single-seat 4K plan.
Netflix should stop whining about account sharing when they demand I pay for two screens to get minimally acceptable TV, but can only use one per their terms.