Well, that it's a bit disingenous for "reformers" to cite the early practice of the Church as an argument in favor of their wishes, isn't it?
In fact, the lack of observance of "continence" by married priests demonstrates that the early Church was either naive or just duplicitous about this practice. It appears that the Church had a policy, knew it was being ignored, and just looked the other way for 1100 years, occasionally reminding clerics that continence was still a requirement.
It was not until Gregory VII actually took the woman away that celibacy began to be observed.