Yeah that actually makes no sense in the slightest.
I don't think this team is a championship contender because I don't think they're talented enough to win 50 games, let alone the 55+ that most actual championship/seriously contending squads have (lower in lockout seasons, obviously), but you can't say they're not contenders in spite of their record should they wind up with 50 wins.
Which would be awesome, by the way. The C's haven't won 50 games a season since 2010-2011. That team was a lot better than the team we have now, at least on paper, so someone would've had to really make strides (which is what we all want to see, right?).
The gulf between 30 and 40 wins is not huge. That is not true for the span from 40 to 50 wins.