I'm going to say no. Chris Forsberg seems to agree.
http://www.espn.com/blog/boston/celtics/post/_/id/4724951/celtics-are-still-chasing-the-raptors-in-the-east
Some key factual support from the article
"During Stevens' four-year tenure, Boston is 4-10 against Toronto and has lost five of the past six meetings."
"A Celtics team that has routinely taken care of business against lesser foes this season -- Boston is 0-4 against the Raptors and Cavaliers but 13-3 versus the rest of the East -- looked a bit disheveled after the Raptors rallied Tuesday. It seems fair to wonder if there's a bit of a mental hurdle that these Celtics must overcome to truly compete with the Raptors."
"Another loss to a quality foe will mean a rehash of Boston's struggles against good teams this season. Boston is 0-8 against the teams ahead of it in the league standings. The Celtics are still searching for a win against a truly elite opponent. "
1) Not surprising you think this, it is an opportunity to be negative about the Celtics.
2) It is pretty irrelevant how we did 16 games ago against them. Do you realize the start of this "streak" referenced in this article includes a game where our starting lineup was Victor Favereni, Gerald Wallace, Brandon Bass, Jeff Green and Bradley and Amir Johnson was starting against us?
3) We have played them twice this year when just about everyone would believe we have been better than we were last year or two years ago. Unfortunately, for game 1 we were missing IT and this time we were missing Bradley. Considering we led both games in the 4th, it is more than a fair question to ask if we would have beat them at full strength (and the data from this year suggests we would).
4) How come you omitted this "Having Avery Bradley, who missed his second straight game Tuesday due to an Achilles strain, back certainly wouldn't hurt Boston's ability to contain Toronto's All-Star backcourt. Marcus Smart played well in Bradley's starting role but is an obvious luxury in a reserve role where he can maintain Boston's defensive intensity as the starters go out." Doesn't seem like Forsberg agrees with you fully cause he is at least acknowledging he played a factor. omitted that part and including other parts that support your view is a bit misleading. The question was specifically about bradley and the win and you leave out the one part Forsberg discusses the impact of Bradley/ Pretty weak move.