An Australian ecclesia recently decided to "dissociate" itself from another ecclesia because they don't like the "disproportionate emphasis on the doctrine of grace" by the other ecclesia.
A "disproportionate emphasis on the doctrine of grace" sounds like an oxymoron to me. "Grace" is all about God's abundant, overflowing, overwhelming, infinite, disproportionate generosity!
Paul used the word "grace" about 80 times in his letters. John says “grace and truth came through Jesus Christ” (John 1:17) and “from the fullness of his grace we have all received one blessing after another” (1:16). Luke said “all spoke well of him and were amazed at the gracious words [or words of grace] that came from his lips” (Luke 4:22). Paul said he taught "the gospel of grace" (Acts 20:24). Many of Jesus stories and parables emphasised the disproportionate nature of God's generosity. If we don't understand disproportionate grace we really don't understand the Gospel.
Members of the ecclesia concerned would no doubt benefit by reading some of the following helpful books:
Law and Grace by Christadelphian author W.F. Barling
Conviction and Conduct by Christadelphian author Islip Collyer
Legalism vs. Faith by Christadelphian author David Levin
The Grace Awakening by Charles Swindoll
What's So Amazing About Grace? by Philip Yancey