Anyone else think so? I live in Boston and usually if someone has a thick accent, I don't always notice every dropped R, but this narrator sounds like he's deliberately doing it to the point that I notice every time. Maybe it's just because he's the narrator and there's so much focus on only his voice.
From the area, at times it does seem forces and fake but maybe its we are just used to hearing him on Blue Bloods. I've heard accents from people that were much more heavy than his and they weren't faking at all.
Most of the people you meet in Boston are not from Boston! They came here as students and stay. The real townies, people from Southie, Dorchester, Charlestown, East Boston, etc. still speak in the Boston dialect - some have it "worse" than others. Mark Wahlberg turns his off and on in some movies, probably because he has to. The narrator (Wahlberg bro) sounds like everyone else I know from Southie or Dawchestah. Sorry, but that's how it sounds.
You do realize our accent is different than it is in the Metrowest area, don't you? His is also mixed from spending time away from the area and acting. Either way, I'm fairly certain that's just the way he talks. I've seen him in interviews and it's the same accent.
Donnie Wahlberg is from Dorchester so I can hear the accent, but it's also meshed with a non-accent from spending so much time away from the area and acting. Definitely not a true Dot accent, but not forced, either. There are 5 slightly different accents just in the Boston area alone. People living in Boston may not notice the difference, but people from here can.