The three things that you shared are correct but aside from them, there are more popular reasons why ICO is on verge of dying right now.

1. Fake/Plagiarized Whitepaper
2. Fake team/developers
3. Lack of transparency to the investors
4. Lack of communication and the team aren't responding to any of the questions of the investors.

For me, this is the main reasons why ICO is dying right now. In short, ICO's are home of the scammers right now that is why nobody or few are investing right now even though the project is very good and helpful to the people.