It hasn't be a great season for Boucher, especially after playing so little last year, but it is nice to see him start to assert himself in the OHL. As was said in this thread already, I think it is fair to give him 15-20 games before really looking at how he fits. Especially with him only have played 30 games in the last 2 years.
The other thing is, you have to be patient with big physical kids.
I made the Wheeler and Crouse comparisons previously, but Wheeler in particular was seen as one of the biggest reaches of all time in 2004, when he went 5th overall and many thought he wouldn't even be a 1st round pick. Many people on these boards back thgen thought it the biggest joke in draft history to take him ahead of highly touted top 10 guys like Olesz, Tukonen and Picard.
Wheeler wasn't even in the USHL yet, went there the next year and scored less than a PPG in a league that was much lower in quality than the USHL today (so the same age as Boucher is now at a D+1 he was in the USHL). He then spent three years in the NCAA, where he never averaged a PPG. He spent the next 4 years as a solid middle 6 forward in Boston and then Atlanta before landing in Winnipeg, where he has become a 1st line player.
Now, I don't think Boucher will be a 1st line forward, but I also won't be surprised if he develops into a solid 20-20 guy who is a physical role player in the Sens top 6. Or maybe he'll be an elite 3rd liner. Or maybe he'll score 30. Admittedly, there are big skilled kids who DIDN'T develop like Wheeler, Crouse and Wilson, so hardly inferring Boucher is a sure thing.
My main concern with Boucher is not rushing him. I think he should play at least one more year in the OHL, and only then consider going pro. Scouts and his coaches have gushed about his skill level (his USTP team mates voted him most dangerous forward), but he has not figured out how to apply these skills yet. And even an overage year wouldn't be a huge deal. Wheeler spent 4 seasons developing his raw skills before turning pro. Crouse went a bit too early, and is only now becoming a reasonably productive player at the age of 24.