Of course the T-Wolves stand a chance at making the playoffs. But there is reason to believe Minnesota's chances are better if they make this trade. They also stand a better chance of winning a round if they make this trade.
The 5th and 11th placed teams are within 4 games of each other. So there are 7 teams fighting for the last 4 spots. Not much room for error.
The T-Wolves have to play 6 extra road games during their remaining schedule, because they've played more home games so far.
This trade gives them a better shot at the playoffs, in my opinion. They'd have a top 3, if not the best, big man rotation in the NBA.