Most Colt users of the era were just happy to have a powerful revolver with self-contained waterproof ammunition and five rounds that could be relatively quickly reloaded.
In 1878, with many still carrying percussion revolvers, and single-shot handguns not ALL that distant a memory, the transition to the "new" technology was still just getting started.
Colt users just accepted the realities & limitations of the Peacemaker, or died accidentally in learning the hard way.
Denis