Blog is a different thing. I got impression that you reported category listing:
http://www.mysiteurl.com/section/articles/and that's what has been fixed.
Blogs have URLs like:
http://www.mysiteurl.com/blogsection/section_name/and yes, they still has the old behaviour.
The problem is not in SEF Advance but in non-sef URLs that Joomla generates. So SEF Advance needs to correct it in conversion. I will see if it's feasible to fix blogs in similar manner.