@StepfordWife no they won't notify other halls. Only the next hall you move to if/when that were to happen.
The will absolutely remove him if you do not start reporting time again.
Don't see that as a bad thing as it might help him along in the grand scheme of things.
Just a suggestion as I literally just went through the whole ordeal myself. Try not to argue. Pose questions instead. For example you might say "husband it hurts my heart that thousands have died because they refused blood fractions, then the next year (or short time after) those fractions are allowed. I've never seen an apology in the WT how must those families feel?"
There are many more questions such as this that simply can't be explained reasonably other than they got it wrong and didn't apologize.
Have him watch the testimony of governing body member Geoffrey Jackson from the Royal Commission. There's nothing apostate about it. He's under oath in court. Why wouldn't he be honest? Yet he says some highly questionable things that your husband will find difficult to reconcile.