So the miner hasn't been released yet, right?

At least that's what I see with several sites saying "coming soon"
The profits are just projections based on the current network status and market conditions. Imagine is that miner is released into the market, Those with money will obviously rush to buy it. The network hashrate could change, and the attractive daily profits you are looking at right now as awesome could change to much lower ones.

If you put into consideration where Ether's price could plummet by over 70% from the current price which is very possible. Then profit calculations in USD become a little meaningless right now.