Something tremendously popular at one instant doesn't last long. Remember ICOs? They have taught a great lesson. DeFi trend will be hot for some time and vanish in thin air similar to ICOs. Let's see what is there to witness.
Unfortunately this is a lesson that many had to learn the hard way, people do not stop talking about DeFi but when I ask them what that is they cannot give me an answer, and this obviously means that we are seeing the same we saw with icos some years ago , people are getting excited over something they do not even understand and while this could produce some lucky winners most people will lose everything they invest in it as scammers take over the market and begin to deceive everyone they can.