That's not quite virtue signaling. He isn't proclaiming support of a good cause or expressing some distinct moral correctness, he is condemning a single perspective and common response in these posts. After all, we can infer his stance, though he makes no claim towards his beliefs, all we know is what he is against. It's a petty distinction, though I feel it helps move it away from virtue signaling.

But no, few things are inherently bad. Our interpretation and our meaning(s) behind our words or actions make them that way. Which is why people tend to fall heavily on one side of a discussion or another.

edit: I see I am getting some downvotes. I am happy to take criticism on this take. No easier way to learn than to challenge oneself to listen and then do.