Many marriages end over the religion, some may end after both parties wake up and realize they only stayed together for the religion or because it was expected of them by friends and family.
Still, I can't say that it would have been better for you to stay at the Kingdom Hall and stay silent, or fade out and say nothing at all about TTATT. A huge part of her problem with you was your discussing this in front of her parents. You may have been able to fade away quietly and make subtle attempts to free your wife.
Or not....
But I tell you what. I love my wife enough to continue to hope and continue to apply subtle attempts. Direct attempts have failed, so I have to be in for the long run. If it fails, it fails. If we divorce later because "the truth" is what kept her married to me, that's okay too. That would cost me financially, but that's okay. She deserves the truth about that religion and I hope she gets it.
On the contrary side, my main connection to my continual marriage is money. Divorce would cause me to lose a part of my pension. My wife has the potential, but doesn't earn as much as I do. So if money were not an issue, if we could both have a comfortable living separately, I would probably deliver the ultimatum sooner or later- leave the religion or I leave. It's not that I don't love her enough to stick around, it's just that the religion can become a huge negative in the way of our happiness.