There were two very serious problems at introduction.
A small bore revolver has to be cheap and mass produced, and for this thing to have had it's best shot at success, there should have been a lot of new engineering and new configuration, and probably an entirely new family of handguns/frames.
In the last two decades, there have been probably a full dozen 45+++++ rounds created, ranging up to and over 50 caliber.
People expect hand cannons to cost a fortune, and there is no burning need to create mass production and enormous sales figures. None of those cannons have been labeled failures, even though they are all pretty close to reinventing the wheelgun.
Pracitality and usefulness are no indicator of success, and there are, honest to god, people who just plain hate practicality to the point that when something seems useless to them, (for example, toothbrushes,) they figure that it has no reason to exist.