They had 20 seconds. there's no "rush" there. The fact that he called the TO actually made TB not even attempt the field goal, taking a possible 3 points off the board. Their kicker has already made a 57 yarder in that direction. At least with the timeout, if they do miss the FG, you'll get the ball at midfield with 15 seconds and 2 timeouts.
This feels like just looking for something to complain about. It was the right decision, and TB didn't get points.