I do too. I think it would push a lot of RCs out and those that were in would be more distinct from biblical Christians.
De Montfort is not untrue. It is allowed thinking in Catholicism, but at the same time one is free to disagree with him in some parts. Generally, it will be good for the Church to develop deeper marian devotions, and also differentiate herself better from Protestant heresies. This might pose a challenge to the faith of many, indeed, but no one said truth is easy. Anyone who wants easy theology can go join the Episcopalians.
I’ve read de Montfort. While it did not do much for me it certainly did not cause me to ponder leaving Christ and his Church. Certainly not for something like Protestantism. Any movement that has an absurd belief like Sola Scriptura, that doesn’t come out of the Bible has no appeal to me. Frankly, if I were a Prot I would cease obsessing about, lying about and distorting the views of Catholics and worry about the Rapture bunnies and other nuts from within your own ‘movement’.