I wasn’t until you mentioned it a couple days ago. I’ve tried before and not found the link, but this time I clicked everywhere I could think of and suddenly found it!! Now I just need to remember which click worked. I think it must have been the title.
I get to the comments if I click on the title of the blog post, either above the video or in the “recent blog posts” box. I haven’t noticed it telling me anywhere that a blog post has received a comment, but it doesn’t take long to check the most recent ones. It doesn’t seem to show up in “latest activity”.