indeed everything you say is important. but I think it can be faked by scammers.

team, they can make it look like all the team members in the project look convincing.
what they have done to prove its credibilitye, if attending conferences/exhibitions or even appearing in public including the way they do it. This can also be done by scammers, you can see there are many projects that do this but in the end it turned out to be a scam. one that I remember, namely the Envion project.

and others I think are the same, scammers who have the funds can do all those things. so I think instead of investing in projects that want to start IEO/ICO, it's better to invest in projects that are already 3/4 months in the market. we can see the true quality and potential. so the risk of loss is slightly reduced.