Failure to attend JW meetings is NOT a disfellowshipping offense because it is NOT a bible law.
The verse talking about not forsaking the gathering of ourselves together is NOT talking about twenty first century JW meetings that's a shameless misuse of the scripture by WT. Even if (which it most definitely is not) it was talking about JW meetings it's a suggestion NOT a law. You cannot be disfellowshipped for NOT attending meetings. No elder can force you to attend.