Here's why:
* Some actors are not from Newfoundland: While Allan Hawco (Jake Doyle) and Krysten Ritter (Desmond) are both from Newfoundland, some of the other cast members, like Sean McGinley (Leo Doyle) and Lynda Boyd (Rose Doyle), are not.
* The accents are slightly exaggerated: To make them more easily understood by a broader audience, some of the accents are a bit more exaggerated than real Newfoundland accents.
* The show's focus is on entertainment: While the accents contribute to the show's authenticity, the primary goal is to create an engaging and entertaining story.
That being said, the accents are generally considered to be accurate and enjoyable by many viewers, including those from Newfoundland. It's important to note that regional accents can vary within Newfoundland itself, and the show's depiction may not reflect all of those variations.
Ultimately, whether or not the accents are "real" is a matter of opinion. The show certainly attempts to capture the essence of Newfoundland culture, and many viewers appreciate the effort and find the accents to be believable and charming.