yea a lot of Bitcoin 'fanboys' who dont like Eth say the same thing. the ICO bubble will pop and then ETH will drop.
they just fear the flippening. besides, Bitcoin shouldnt still be going up given the speed/fee drama it is facing right now, but it is still going up.

and in fairness if you can pick a good business model behind a good ICO and coin, then why would it not be a success?
traditional stock trading has been working this way just fine for many years with IPO launches.