Georgia Tech has played the 46th hardest schedule in the country and has played the 16th best set of defenses in the nation. They rank 340th in the country in luck, primarily based around the fact that when they win they win big (8 of their 9 wins are by double digits) and typically don't get blown out or if they do lose relatively big, it's against teams which should beat them by more (UNC, Duke, FSU, NCSU within 15 points).
They did get blown out by Alabama and Virginia, but those teams are 28th and 20th respectively in KenPom. They have two bad losses: Fordham and Wake, and other than that have basically beat the teams that they're ranked ahead of and lost to the teams that they're ranked behind. They also have a comparatively good defense at 106th in the country.
Also 151 might seem to be "good" since we're 207, but keep in mind that no ACC team prior to last season since 2003 had finished worse than 117 (Clemson in 2004) and only three teams since 2003 have finished worse than 100 prior to this year (2003 Clemson, 2009 Virginia, last season Wake Forest, who is the only team to ever be in the 200's until this year when presumably Wake and BC will make the list 5). 151 is about as "average" as you can get in college basketball and typically you would expect ACC teams to be well above "average" considering this "average" is factoring in teams like Grambling, Towson, and NJIT, not just power conferences.
Also a fun fact is the past two years in Wake basketball have been two of the worst three years since 2003 period in the ACC. If BC continues to improve, we could presumably have the worst two teams in a decade for an entire conference in back to back seasons. That's food for thought. If you think we might lack talent, ask yourself if we lack so much talent and team cohesion that we should have been worse than EVERY OTHER TEAM in the conference since 2003.