Sorry, I'll have to correct you on this one. Your linked Ehow article is misleading: it claims to be showing how to embed meta info in Audio CDs, whilst it clearly states that you should switch the burning mode into 'Data CD' on step 2 - which effectively leaves your MP3 files as MP3 files. Completely intact, tagged or untagged.
I'm not sure what you're arguing against since I did explain that CD-Text info can be included. You can't quite call it track tagging (because it's stored in the lead-in area of the disc, and not each separate track), but it's meta info nonetheless.