I see a spectrum of responses to GPT, but the really important thing is the rate of change. Even if GPT somehow doesn't impress you currently, why do you think things won't be improved in 6 months? What about 5-10 years from now? I can understand thinking that transformers are maxing out on their sigmoid curve of progress, but every time people complain about perceptrons, RNNs, CNNS, etc - another team invents something new and blows out all the benchmarks. These things won't get worse, so even if you assume a pessimistic rate of change, how different will things look soon?
The observation that these AIs are "mere text generators" is a testament to how insane they are IMO. The fact that they're just predicting the next token and are still this powerful is paradigm-shifting for how I viewed human intelligence. I don't think these things are sentient, but if they can replace me at work in 10 years or less, who cares?