That seems quite reasonable to me as a non KJV-user. I could certainly live with it.1. They use the KJV because they feel the reliability of the Textus Receptus is better than the Alexandrian Critical lines of text.
2. They KJV is used for preaching and teaching, but they will not argue with or disparage those who wish to use other versions.
3. In his words, "maybe once a year" he will preach on why he and the local church feel the KJV is best.
In Britain, the majority of the churches that still use the KJV are Reformed, often Reformed Baptist. The Metropolitan Tabernacle in London (Spurgeon's) is an example.