If you read the article you would see that they are one of a number of partners. The project costs several billion US$. By 'buying in' like this you are given a dedicated portion of the bandwidth to use.
Facscinating, so now I'm completely confused. If they can pull this cable for 300M$US total that is a huge improvement in costs from previous efforts. Now I feel compelled to track down what changed that made this an order of magnitude less costly to do.
You're right. The press release [0] does say "The total amount of investment for the FASTER system is estimated to be approximately USD $300 million". That would, however, make the title of this article wrong.
I'm surprised Techcrunch made that big a mistake in their reporting.