@herbetterspace - you'll still need to make these changes at Ezoic, as they're separate ad platforms to Ezoic.
Some of these reports exist and are available as part of Ezoic premium, but are not available as standard. Because Ezoic varies ad locations/sizes etc etc, we don't tend to find that these reports are that valuable. I.e. a 728x60 ad may garner better revenue for one user but worse for another when compared to a 300x250, so Ezoic will vary what ad is shown on the page based on this. As a result, checking which is the 'best' ad size doesn't make sense, as it can vary from user to user.