no. According to the ICS, which you already acknowledged as an authority, there is a clear distinction that eras are a subcategory of eons.
It should also be noted that the eoarchean era lasted 300 million years, which is nearly as long as the Phanerozoic eon (540 million years, indicated by your own provided graphic) so these divisions are not based on time or "billions of years v millions of years."
You have no grasp of this subject which is made obvious by your defining geochronological time using a biostratigraphical definition, which is a different, albeit related, subject.
Lastly, numerology is not a scientific topic. Please don't change the facts to suit your new wave agenda. We all know better.