Yes they are and actually they should have never got any value at the first place.
Because, you are buying from exchange, using for services, reciever is selling on exchange and in this, why should it get any value?
Because of the hype on their first day and now they are slowly dying. Utility coin are still there but not active as much like before, they are dying because of insufficient development. Investors really want a financial services that can help their business grow and those utility token are only for their own sake so that's why they are not good anymore.