Hype is useful, without crypto hype, bitcoin would not be popular, remember 2017, bitcoin got its ATH because of hype.
I'm ok with the hype as long as these projects can back it up with usable platform and potential for profit for investors, every coin gets hype, it will take some time to see the real colors of these DeFi if they live up to expectations but I have seen some of their features and I believe they can recover I hope I'm right.
There's a these because we also have a lot of successful project that will succeed but not all of them. Hype of DeFi is normal as they find it profitable to invest, but with specific projects only as there are bad projects which are just using the hype of DeFi, and that is something we have to determine carefully as investors.