I like Blais. He's good at what he does, and he seems like a genuinely good guy, But he belongs nowhere near the top line or any of the PP units. He's a 4th liner who can play on the 3rd line in a pinch in case of injury. This is a 26 year old player who has never scored more than 15 points in a season or even broken .5ppg. He has one--ONE--power play point, and it came four years ago.
But the biggest issue, and the reason I don't like rolling him out on the first line, is the guy just can't stay healthy. He's missed at LEAST 25-50% of every season he's played due to an array of injuries. It's a feature, not an bug at this point. Training camp needs to be about building chemistry. Having an injury risk like Blais on the 4th line is no big deal. But we can't waste all of pre-season trying to get something going on a major unit/line just for another (inevitable) injury to force the team to figure it out during the actual season. The fact that the team has a 1st overall and a 2nd overall pick in the bottom six AND a top prospect who is also a winger makes it all the more baffling.