"He [Allen, the Amish man] was always frustrated by the lack of spiritual food they received mostly it was all about traditions very much like the Jews."
Allen and Mary can't see it yet - but one day they likely will - JWs are more like the Jews with all their traditions than almost any religion on earth. They have gone from the frying pan into the fire. Hopefully they will both see what they've done very soon.
As to the shunning, they will soon find out that JWs are similar to the Amish. Even though Witnesses make this statement in the literature...
(Awake 7-09 p29)
“No one should be forced to worship in a way that he finds unacceptable or be made to choose between his beliefs and his family.”
...Allen and Mary will learn that JWs practice just the opposite.