Yeah I agree even though I'm Elyos. No amount of incentives will do anything because most of the players joining are casuals who don't read anything just click. They create a new account, they more likely choose the "good angel" from the picture than the "bad angel". Only closing or queueing faction registration can stop it. If they cannot choose elyos, you might lose some new registration yes, but you will lose way more if asmos will not have any success in anything, because your actual playing and loyal customers will quit then. Think about it.
Currently asmos are winning, but I know a high amount of veteran players who recently registered and they are very good, leveling up on elyos side (ex-veteran asmos also rerolled ely). As op said, balance will change soon and drastically.