Quote from today's Watchtower Study Article that's being studied at the Halls (March 15, 2015, Page 24):
"Understanding the Illustration of the Talents"
"When the Master Rewards the Slaves."
"Former explanation: In 1919, Jesus rewarded his anointed slaves on earth by entrusting them with increased responsibility."
"Adjusted explanation: When Christ comes in the future, he will reward his faithful anointed slaves by raising them to heaven. The Wicked and Sluggish Slave."
"Former explanation: The wicked and sluggish slave refers to anointed ones in the 1914 era who refused to share in the preaching work."
"Adjusted explanation: Jesus was not foretelling that a group of his anointed followers would make up a wicked slave class. Rather, he was warning his followers about what would happen if they thought and acted in a way that would cause him to view them as wicked and sluggish."
So they have erased their doctrine about 1919?