Yes, it was just for the sake of simplicity. I wasn't sure whether it would be good to explain what Evas are or not as the first paragraph was already getting long enough and this wasn't the article's intention (or it would take too long until the reader reaches the actual theme of the article), so I just refered to them as fighting robots believing this would be bo problem (unless it was a full Evangelion's analysis; if this was the case, of course it wouldn't be possible to do so).