The minister did not “blast” the Masons. He simply would not allow them to participate in his part of the service.
The Mason interrupted him. Once the minister was done and ended the service. The Masons then did their thing. The minister simply wasn’t going to associate his roile with Free Masonry.
Now a change in what you are claiming, you first said the minister did make comments that indicated his disaproval of Masonry. But that being said: We are there at the request of the family. I have never seen a Masonic graveside service where we wanted to or tried to do anything that was against the wishes of the family or the clergy involved.