That's just free-market capitalism. Companies try to disrupt each others sales all the time. Look at Lyft and Uber- constantly trying to take out the competition.
Also, Behringer's Swing has it's own firmware and added functionality, so it's not a 1:1 clone.
How about all of these 4 channel mixers? Are they all trying to disrupt Behringer's sales?
Why don't people get upset about this?