Grant time-out or not? (FIBA Rules)

[ODog]

Just so we're clear, Team B scoring does not all of a sudden create a "substitution opportunity" for A. Yes they can call a time-out at that point, during which subs from both teams may enter.

As to the handling of the scenario, if the game were already decided and since a dead ball has been created by the table's error, I'd allow the sub to come in (after explaining how life works to the table personnel, of course). Close game: no sub, play on.