Oh, in some areas they are definitely being castigated. But the passage is still about Israel being the servant of God, intended to stand as an example to the rest of the world. He makes promises for them if they obey, rails threats for when they don't... but yes, the whole passage, taken together, is about Israel.
I’m afraid to have to tell you (and everyone reading this) but a-perfect-lady isn’t. You are wrong. You do not understand the scriptures concerning Israel’s messiah. You have either been misinformed or mis-formed your own opinions by (and I say it again) leaning on your own understanding.