My preference on the Takes is that they allow the winning contestant to pull from their opponent's board after solving the puzzle. It was a little too acrimonious for what is supposed to be a fun back-and-forth game. It was compounded when a player lost their prize and solved, and then Jack or Alex was left lamenting on what they didn't win. It also didn't make sense (although when time is short, what can you do?) that a player was penalized for unused Take cards just because time ran short in the round.
I get it, though. The takes went both ways for the production company, rather than increasing the frequency of wins of the major prize on the board.