The monks of the monastery twist the meaning of the verses of other religions in order to explain the dhamma. Like Ven. Amadassana Thero said he believes in GOD but for him his definition of god is Give or Deny. This is kamma and kamma vipaka he’s explaining using GOD. Also he uses the Bible Phrase “The truth shall set you free” and then uses the dhamma and proves how it’s the truth and how it will lead to freedom from suffering.
They do this out of compassion for every other person of different religion as it may cause irritation if the beliefs of someone are attacked. An ignorant mind tries it’s best to defend its belief as it feels it can’t be wrong( self ego).
And I would also advise not to judge anyone only because they appear straight forward. I understand using harsh words are not good, but apart from that if someone doesn’t sugarcoat his/her statements there’s nothing wrong with that. I expect straight forward answers without any sugarcoating. The Truth.
If someone gets offended if his /her beliefs are being targeted, it’s because that being lacks Wisdom Faculty.