Criticism surfaced in Washington as well

[Reading Comprehension]

Criticism surfaced in Washington as well, where both Republican and Democratic supporters of Israel said the agreement in the works was far too easy on Iran.

Does the bold part suggest "the agreement was not easy to make"?

[Beeesneees]

No, the meaning is that the politicians felt that the sanctions placed on Iran were not heavy/serious enough. (Iran got off lightly.)
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"Inside every old person is a young person wondering what happened."
Terry Pratchett