A lot of people are going to discuss it; it took me all of three minutes to find several articles covering the problematic nature of this fictional character - it's not a matter glossed over, and I agree with you that it should not be glossed over.

The moral nature is not, however, in any way the subject of the article linked here - its entire premise is "people playing BG3 are getting familiar with more complex D&D rules through the medium of the game", including Astarion and rogue mechanics. He's mentioned once in the whole article, to illustrate that folks including him in his party are getting to grips with positioning and bonus action economy of his class.

Trying to cram moral judgement angle into this feels like conversationally lazy whataboutism.