That's going to be hell for Google. Well, maybe not, they have many and decent lawyers.
How is my interpretation incorrect, please? TikTok (or any other website like Google) can show a video to a child in any number of ways - all of which could be considered to be their speech.
That said, this is a statement completely unsubstantiated in the original post or in the post that it links to, or the decision in TFA. It's the poster's opinion stated as if it were a fact or a part of the Judge's ruling.
"We reach this conclusion specifically because TikTok’s promotion of a Blackout Challenge video on Nylah’s FYP was not contingent upon any specific user input. Had Nylah viewed a Blackout Challenge video through TikTok’s search function, rather than through her FYP, then TikTok may be viewed more like a repository of third-party content than an affirmative promoter of such content."