Ignore the commentators. It is interference because B/R did not allow F3 to make a play on the ball. Ruling has nothing to do with the running lane.
Force Play Slide Rule
Older video but still correct for today's rules.
Videos Are Courtesy Of Major League Baseball, YouTube and the NCAA
Running Lane Violations (Interference)
Batter Interferes with Catcher
Runner Interferes with Fielder
Catcher Obstructs Batter
Appeal Plays
Umpires Taking Tag Plays At The Plate
Unusual Plays
