Look, nobody (for the most part) is claiming that current AI systems are "there yet" as far as being fully equal to human intelligence. That's what makes this whole argument useless... it's basically a straw-man argument.
OTOH, saying that artificial intelligence systems aren't "intelligent" to a point because they don't do exactly what humans do strikes me as roughly equivalent to saying that "airplanes don't really fly because they don't flap their wings like birds. They're just mimicking actual flight."
Of course AI is intelligent, it just isn't done developing yet. An apt comparison might be a precocious (and something peculiar, in this case) child.
And as an additional side-note: this article seems to conflate "AI" and "Generative AI" / LLM's as being the same thing. But that's not right - Generative AI / LLM's are just a subset of AI techniques and technologies that exist. Yes, GenAI/LLM is the current "new hotness" and the trendy thing everybody is talking about, but that doesn't excuse completely ignoring the distinction between "all of AI" and "Generative AI".