It appears by his actions since the Republicans were forced to back off that their concerns were completely justified. He has since tried to help the Democrats by pushing to have hearings for Trump’s nominees slowed. In addition, he has been harshly attacking Trump’s plans to separate himself from his businesses, in great contrast to his strong support of Clinton when ethics questions were raised about her paid speeches to foreign governments.
There is more at the link. It is quite clear that the Republicans in the House knew this guy was a Democratic plant, and wanted to get him out. They just handled it badly, and are still stuck with him. Fortunately, it appears that they are not only mostly ignoring him, his documented biases are now working against him. Expect them to act to shut this ethics office down not too far into the future.