you are correct. Many projects have nothing to give in the nearest future yet those projects are been paraded by their team as good projects. Investors really need to be watchful of such projects.
I recommend investing only what we can on any project even if they are looking so promising, belief me that team can start changing ways after few years or they start showing sign of weakling and everything can go bad from good, that's why it's wrong to depend on a token or coin