I guess you mean that Defi will also end up like ICO. Degi is the trend in crypto space right now, anyone that want to enjoy the the crypto space right now must be involved in Defi directly or indirectly. Most projects are now adding Defi to their plan in order to sell their product. If Defi will end up like ICO, only time will tell.
The problem is that people get hyped too easily and they criticize equally badly when they don't get the expected returns. People expect like million dollar profit within a week with defi coins and this is just the wrong way of looking at it because must look at this as an opportunity to earn but there will always be bad tokens so it is not like you close eyes and invest and then blame defi if you don't succeed.
It looks like the excitement over DeFi continues, but it's good to remember that something bad can happen so stay wise and be aware that the unwanted might repeat itself as an ICO once triumphed in its time and then left so much disappointment for deceived investors. , by a fake project project.
As long as there exist investors there will always be scam or fake tokens because scammers want to juice out as much money as possible from these innocent/new investors.