ok as i understood it Earth (as we dont know any better at this point) is Standard on which we judge all planets with life. ie Term Super Earth as the planet looks like Earth but is Way way bigger then we are so if that is true then , the Standard which earth is compared must change ie Earth is now Dwarf Earth. 1 can say Earth is not Classification but if you visit a planet that looks like earth and your from earth then it earth like ,but that alone does not change classification, what does change classification is what we dont know is if earth is nomal for it size as we dont have point of frame of
Reference to conpaire so it's not far leap from there to then say Earth is a Dwarf Earth.
we don't say dwarf pluto or anything earth is just the name for the planet we gave it. i'm not quite sure what you're trying to say, but if there were another planet like earth, we'd call it something different to differentiate it. earth is a terrestrial planet, that's already there to differentiate gas giants from terrestrial planets. we can't really say there might be a bigger earth, because we haven't discovered it. it wouldn't be true. mars is said to contain frozen water, so you could also say mars is a dwarf earth. but it isn't, it is simply called mars.