Above you're arguing for one side of the debate. I'm arguing that as long as there is a debate the safest bet is to adopt the default, null position: it's not flying; it's not intelligent.
To summarise my argument again: if we can all agree that something is intelligent, then it probably is. If we can't, then it probably isn't, especially, I would add, if there is substantial disagreement.
One motivation for this is to avoid an unending quest for the right definition. Once we can all agree what (artificial) intelligence is, it will be much easier to agree to a definition. But while we're all looking at the same thing and can't agree on what it is, how can we agree on a definition, and then use it to support one or the other side of the debate?
Take human intelligence. I don't think anyone seriously doubts that humans are intelligent, except perhaps for the purpose of being contrary, or being a philosopher[1]. We may not know what "intelligent" means, but we can agree that whatever it is, it's something that humans have. Yes, that's an arbitrary decision, but as long as we can agree on it, it doesn't matter that it's arbitrary: it matters that there is consensus, based on common experience, and we all know what we're talking about. We can't get to a definition of a phenomenon before we all agree that it is there: we all agreed that fire is fire, water is water and ice is ice, a long time before we had any sort of commonly agreed definitions of them.
"I can't put my finger on it but I know it when I see it"- that's a very simple way to avoid discussions that lead nowhere.
And there are way too many discussion that lead nowhere in AI.
Edit: btw, in research the discussions are much more focused. E.g. "LLMs can plan": that's a concrete, testable claim. No reason to define intelligence to resolve it. Much more progress is made this way than by endlessly chasing our tails about what is or isn't intelligent.
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[1] The purpose of science is to pose questions and answer them. The purpose of philosophy is to pose questions and question them.