The article might have some weight if your highlighted buzzwords like NFT, Crypto, Metaverse, Blockchain etc were actually of practical use and solved some very real problems.
Web3 was never about decentralisation but adding capitalistic scarcity to things people get for free and in abundance to hike the price. 'Design3' might work within that realm but whilst there are software developers working on ways to con more people into buying hyperlinks of images they can screenshot for nothing, those of us actually involved in actual product design will continue to build the very real physical products we need to clean up the planet, improve housing, assist the differently abled, reuse urban areas and create monetary mobility.