This one actually has better specs in certain random ways (like including displayport and hdmi outputs). It doesn’t have full USB-C PD though, with only 45W passthrough. And it isn’t TB3, and it looks a LOT odd to me. But less than half the price.
At this price, I actually expect two DisplayPort connections for the dock, not just HDMI. The dell dock I mentioned above has two displayport, an HDMI, and a USB-C WITH displayport. Your computer can’t actually drive all of those at once most likely, but the connection options are there.