True.
I have been struggling to find out how I can disable it's built in feature of always correcting HTML. It seems to always correct mistakes, but more often it simply makes it harder to do what You want.
There is one very good plug-in I found. That's
tiny MCE advanced. It is very good at outputting exactly what You want. The other way is to pre-write Your article in Dreamweaver and then copy-paste into the WP