From the Monk & Pala thread
"Also new update bring many big fix and improvement.Framelock within CR is now supported too.Please update and enjoy.Thank Mirabis for everything."
If you read further in those threads you will see Tuanha post about there being issues with Framelock on all CCs but shaman and too keep it turned off on other CCs till 5.4 updates when he should have it working propperly.