I think you can look at it dispassionately from a systems perspective. There is not /really/ a quantifiable threshold for capital I Intelligence. But there is a pretty well agreed set of properties for biological intelligence. As humans, we have conveniently made those properties match things only we have. But you can still mechanistically separate out the various parts of our brain, what they do, and how they interact and we actually have a pretty good understanding of that.

You can also then compare that mapping of the human brain to other biological brains and start to figure out the delta and which of those things in the delta create something most people would consider intelligence. You can then do that same mapping to an LLM or any other AI construct that purports intelligence. It certainly will never be a biological intelligence in its current statistical model form. But could it be an Intelligence. Maybe.

I don't think, if you are grounded, AI did anything to your philosophical mapping of the mind. In fact, it is pretty easy to do this mapping if you take some time and are honest. If you buy into the narratives constructed around the output of an LLM then you are not, by definition, being very grounded.

The other thing is, human intelligence is the only real intelligence we know about. Intelligence is defined by thought and limited by our thought and language. It provides the upper bounds of what we can ever express in its current form. So, yes, we do have a tendency to stamp a narrative of human intelligence onto any other intelligence but that is just surface level. We de decompose it to the limits of our language and categorization capabilities therein.