I said it is implied didn’t I? That’s what Oda wants us to take away from that scene
It's not so much a matter of implying, it's a matter of what we see.
We see a giant turn pale and tremble with fear after seeing Linlin's birthday where Carmle and the children disappear and immediately after he runs to Elabf to warn everyone, which makes Linlin hate him even more
Now, according to what possible logic the giant would have had this reaction and the giants' hatred increased so much if Linlin didn't eat everyone? I mean, what would the giant have seen in your opinion?
But implications are something that authors can easily get around. For example fake out deaths like pounds. It is implied that he died, but we never see him get beheaded nor we see his dead body
Because there the scene jumps and we don't see what happens. But here we clearly see what happens next. We see that both the giant and Streusen are affected, who in one way or another by Linlin, a sign that they saw her do something scary to Carmel and the children