EA are way stronger than many people think.
The natural composition partner of EA is the Onager as it deals very well with mass skirm or mass Halb, which aret the 2 realistic options against a big EA ball. It’s also good against if the opponent makes his own siege against the EAs. (Though then you probably would like to have BBCs…)
The issue isn’t that EAs would be bad, it’s that you often don’t get to the eco needed to make that ### #### of EAs you want. Also you need to make sure not to be raided at home while pushing.
I also think that every good Gold unit should have a trash composition partner, and EAs currently don’t really have one. In my thread where I try to find new trash units to accompagnion the various Gold units that currently don’t have a comp partner I designed also one for the EA: