Shaking the dust off one’s feet is a different gesture than burning books. Shaking the dust off one’s feet is to be done after one has made a sincere effort to witness to a particular group, and the gospel has been rejected.
Unless you have evidence that this has occurred with the church in question, there is no reason to believe that principle applies in this particular case.
My comment was that it seems we are fast approaching a time...
I do not know the history of this church. I also want to be slow to condemn the actions of a fellow Christian if they are following the will of God. Is there a biblical mandate not to antagonize the pagans?
It seems that most of Paul's writings in regards to the pagan cultures and religions were quite hostile by today's standards. They would surely have been considered inflammatory at the time.