For whatever reason, the rotating lock barrel system has not been wildly popular.
One reason is the tendency for the torque of the barrel throwing the gun off to the side.
It was used a bit in the early days in guns like the Steyr M1912, and is once again being used today in several guns.
The jury is still out on the newer iterations of it, but the Browning system seems to be the winner design, and I wonder if the rotating barrel is just an attempt to have something "new".
In any case, the jury IS still out on the new ones, but I haven't seen guns with rotating locking systems doing much in the market.
The get introduced, they get the usual rave reviews in the gun magazines, and they sink into the ocean of new guns without much of a trace.