I strongly disagree. Atheism is explicit lack of faith.
For all practical purposes, an atheist thinks that without evidence, it's safe to assume that there's no god or gods.
Would you say that you're genuinely completely agnostic in relation to every single religion that has ever existed, even the joke religions (like the flying spaghetti monster, etc)?
I don't think there is anything "militant atheist" in the post you replied to.
I also consider myself a secular humanist, but would never describe myself as religious.
I think that normalising not having a religion would help to bring tolerance for people who have differing opinions, while calling secular humanist a religious view may reinforce a bias in some people that "you can't be good without religion".