I personally liked star ratings more, but can see why they'd make the switch. Average star rating is basically a 1 dimensional model, but now what they're doing

I personally liked star ratings more, but can see why they'd make the switch. Average star rating is basically a 1 dimensional model, but now what they're doing is communicating a prediction: how much will so-and-so enjoy this show. A show can still have a lower match for all people (similar to having fewer stars). But I think I still like the (assumed) transparency of stars better.