They are saying that in this particular opinion piece focussed on this particular topic, yes. It’s disingenuous to argue they only speak out for Muslim heritage when you could easily search their site and find many reports and commentaries on the destruction of historical sites all over the world.
At least in CWD-causing prions, plant accumulation is significant enough for the plants to be infectious when consumed by mice in a lab setting. So, maybe?
https://www.usgs.gov/publications/plants-vectors-environmental-prion-transmission