I really don't know but that's not going to stop me from guessing.
Since the bolt action rifle was THE rifle action since the 1890's maybe some gun company figured that a shotgun with the same action would catch on. It turned out not so much.
On my somewhat personal experience. I remember my Uncle buying a bolt action 20 gauge for his oldest in the middle to late 1950's. I seem to recall it was clip fed and had a poly choke. Even though his brothers and I were envious of his possession we could see it's limitations as a repeater. And in a few years it was traded off for something better.