Took a peek at the logs-site you all know of and DPS may be indeed an issue. But while I actually see some of them wanting, you should be fine if you can parse blue in E1S.
For the rest of it: I don't want to parse-shame someone, but there are are still people in your static who haven't even managed to see green in E1S after 5 or more kills, with others just barely jumping over the 25% mark. So I think there may be also some problems with the rotation of said players.