The numbers are absolutely legit, wrestling reporters scrimp through every moment of the company's dealings. There are detailed reports of every bracelet paid for in cash at a show with 200 people.
Now the value of a product is often hard to gauge. 200 million seems ridiculous but frankly it's only twice the UFC whose biggest show drew less than TNA's canceled, often unaired, B show. The problem is that advertisers hate buying wrestling, during the glory days the two big shows beat MNF head to head. WCW added another hour, that they had to bear the cost for, and was only granted an additional 2 million dollars a year. MNF charges, including preseason, ESPN over 22 million for EVERY hour.
The squareness of the product enables partnerships that are frankly, extremely valuable.
As to the last point I will say that it is impossible for any domestic company to ever compete. Too much time has passed. There is no rich vein of talent or under-served market. Even if there was the E would snatch that talent up or diversify their brand to get those dollars. They would probably just buy their competition. The only way to compete would be for a billionaire to try and hire the biggest draws and hope to build up their brand which is something much too risky.