Play by play is unclear, but from what I can gather there is a Xavier foul, a Xavier Tech, and a Seton Hall Tech all at the 2:50 or 2:51 mark (depends on which play-by-play you read). If the techs were administered as a double tech, which seems to be the case based on only two FT's shot by Seton Hall, then there would be no FT's for the techs for either team, only for the one Xavier foul.
Again, not looking at video here, just the poorly worded play by plays at 3 different websites