Maybe I should clarify. From my understanding OT is correct when used with a client-server model. But if you have read the research a lot has happened since the first OT paper was published. The OT algortihm works well even for Google Docs and other open source solutions.
Why not leverage that solution than just saying OT is incorrect and roll out a rudimentary solution? CRDT is not something easier, OT and CRDT are just 2 different beasts with different trade-offs.