There's a good video he's featured in discussing this issue
FWIW, he does talk about CSAM and is definitely aware of its pitfalls on his podcast, so it's not like he's blindly banging the drums.
Besides that, I'm sure his reach on Social Media & Youtube is quite a bit larger than on his podcast. And I guess, the reason he had those comments under his videos was, because those people don't listen to his podcast either.