Sadly, it is that hard. I wanted it for dinner on our arrival night next Saturday, but like you, found no availability as soon as I was able to start booking at 6 a.m. I was able to book it at the end of our stay, but really preferred it for our first night. So I listed it on TP's reservation finder, and received two notifications of reservation availability. Both times, as soon as I entered my info to log in (literally seconds), I received a message that they were no longer available.