there are many reasons why ICO fails, I think the failure of ico is due to the unsupportive teamwork in completing the ICO marketing especially when they want to cooperate with colleagues, the work team can not have a good experience and the product they produce is not interesting to sell.
Not really, it's mostly about the hype and advertising. Telling you, it's a tons of good nice projects on the market but nobody knows about them due to the situation that projects aren't presented anywhere