[lesuorac]

I think they're pointing out that the sentence is symmetric.

"That product saw little adoption" - "and pretty much languished."

"privacy concerns" - "about privacy"

[aspenmayer]

Tautologically redundant is how I’ve heard other professional writers older and wiser than I am refer to this occurrence.

[floydnoel]

I really enjoy how that phrase is also an example of itself- such a great term!

[DonHopkins]

Department of Redundancy Department