Why should we not be familiar with their teachings? Jesus dealt with this level of legalism.
Their traditions were not real law, and therefore not truly binding to begin with. We were already free, from God's point of view, from this foolishness. What truly bound us was the law of sin and death in our members finding occassion in the real law to work death in us.
Christ took the 'handwriting of ordinances', which were against us, to the grave with Him. In essence, the law, to which we were in bondage...our spouse...has died, so now we are free to marry another, and that other is Christ, and Spirit of life in Him enables us to walk in true love, and true service to God.
Yes, we need to learn the law, but we don't need to learn their traditions. Their traditions negate the law, as said above, and therefore are an impedence to our apprehension of Christ. Not only that, we are explicitly warned not to give heed to Jewish fables. They would only result in making us twice the children of hell.
However, if learning their traditions opens one's eyes to their tenants of Jewish supremacy, and their hatred of everything and everyone "Christian," there might be some value in that.