That study's been going around for years in the media, but mainly because it's sensational. If you actually read the article, I'd hardly say it's very convincing, or very accurate. Also, this.

Existing estimates of mortality from cat predation are speculative and not based on scientific data13,14,15,16 or, at best, are based on extrapolation of results from a single study18. In addition, no large-scale mortality estimates exist for mammals, which form a substantial component of cat diets.