It's not an uncommon argument to try and draw parallels between these - X was a fairly useless, yet extremely speculative new tech scam, and Y is speculative new tech. Therefore Y is also a useless scam, QED.
There's a difference between something being an extremely hyped development and it being an actual grift down to the core. The internet was an extremely overhyped development, but ultimately not a grift. Cryptocurrency was, to a large extent, both. Whether generative AI is one or the other won't be apparent until a bubble truly starts growing.
Something can be both a good development and overhyped grift. You have to keep in mind that for a lot of people and their businesses, the grift is literally the entire angle. Not building a technology. Not building a 100 year old business. But to get rich fast as you can while you have the opportunity, tech and business be damned. Ironically, both the real technologists and the grifters benefit from this preaching of misleading overstatements and half truths from the rooftop. It’s therefore tolerated almost as a funding mechanism for the industry at large. Mac os 15, same as it ever was now with AI under the hood. Sounds like a good seller to me.
There's a difference between something being an extremely hyped development and it being an actual grift down to the core. The internet was an extremely overhyped development, but ultimately not a grift. Cryptocurrency was, to a large extent, both. Whether generative AI is one or the other won't be apparent until a bubble truly starts growing.