I am not sure if the pre-Christian era Jews met regularly or not, and equally sure the WT does not know either. However, that has never stopped them from cherry picking bible verses to make their point.
The WT at best tries to present itself outwardly as "Christian", but would much rather use the OT to enforce their rhetoric. Too many conflicting messages in the NT for them. The "friendlier" parts of the NT just do not sit well with the JW leadership.
It's all crap anyway.
d4g