The misconception is that Synod or Council of Elvira was an ecumenical council with authority over the entire Church. It was not and is not considered one of the seven Ecumenical Council of the Catholic Church.. It was a council between the 19 bishops of Iberia to establish consensus and governing rules within their jurisdiction. It was not the first or only council, but is notable because its canon has survived. Although there are 81 canons attributed to this council some historians believe that as few as 21 were actually authored by the council.
As for the infamous canon 33 it is not clear whether this prohibition all marital contact, a prohibition against the clergy having children that would detract them from their obligation, duties and loyalties, or a temporary measure like fasting before the Eucharist.
I accept that the Catholic Church, with the ability to study the original documents in the context of the language usage and the culture of the times has arrived at a more accurate interpretation than agenda driven Protestants with no more preparation than a Sunday School lesson, a Google search engine and a 30 second reflection..
I know it was a local council and I know why it was called..but it laid the foundation for celibacy