Interesting find and really hard to asses. For one, the icos on ETH didn't deliver anything working yet. And i feel the very ambitious rating are passed us atm. So if EOS is available to deliver, successful airdrops should provide much higher evaluation. If you look at EOSDac, there was a similar analysis on reddit which resulted in and hypothetical token value of 70c calculated, which at the moment would be a dividend-equivalent of 5%. Of course for one airdrop alone (which might not be the smallest but also not the largest).