Seems he has in fact fallen off a cliff. He plays in a similar defense too, so I'd say pass. Here is an article before the season started. This is concerning.

"King’s performance in 2019 was genuinely very concerning. Sure, his PFF defensive grade was fine. Despite it being a passable grade, it was just about 20 points lower than his 2018 score. His coverage grade also decreased more than 20 points.

In 2017 and 2018, King allowed a reception percentage of 77%. That number jumped 10 points to 87% in the 2019 season. Quarterbacks also routinely picked on King throughout the season. In that same period of the first two years of his career, King allowed a 91.6 passer rating when he was targeted. That ballooned 30+ points in 2019 to a 123.8 passer rating."

https://boltbeat.com/2020/08/05/la-charg...re-signed/

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