High Christology as a doctrinal stance was not enough to prevent the eventual apostasy of those in Asia Minor. Doctrine must produce the right conduct.
The Laodiceans fail to reciprocate Christ's love for them. The comfort of prosperity blinded them to their spiritual condition, especially their need for Christ.
Colossae and Laodicea were susceptible to fast-talking teachers, whose plausible words eroded the true Gospel in favor of pagan thought and practice.