I think it will last, STO is the best solution at the moment. investors get guarantees for fund protection. This resolves the crypto project fraud problem.
There are drawbacks to this. For example, STO = a lot of regulation because government should check all your operations within the framework of the current legislation to ensure the rights guaranteed by STO. In addition, only accredited investors will be allows to take part in STOs, so, the the idea of crowdfunding on blockchain platforms will die.