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>Does that difference matter? Neither you or I can prove either way.

I did not say it did or did not, I am saying you can not preclude that it does, which is what the claim of the article OP is. It seems to me you are inadvertently agreeing with this. My main point was to refute OPs claim that

>As far as I can tell, we haven’t been able to prove that brain complexity = consciousness. Meaning, there is more to consciousness than the complexity of a neural network.

as their observation of a "lack of proof" does not imply the conclusion. Furthermore you mention

>No, because we can observe the street being wet for other reasons. We can't observe consciousness at all (aside from our own).

Again I think you misunderstand my point, my example was just an analogy as to why the the conclusion you arrive at is incorrect at a logical level. You claim that 1) you are conscious, and 2) "because others are look like you (subject to some likeness definition you decided upon), then they are likely to be conscious". Fine. However, this does not imply the conclusion you try to show, i.e. that 3) "Someone who is (likely to be) conscious must look like like me (subject to the likeness definition you decided upon)". This sort of reasoning is a fallacy at its core, and it is non-sequitor from the premise 1) and the assumption 2) at a logical level. You are basically claiming that it must rain because the street is wet. It's extremely common for people to make these mistakes, however, and unfortunately it makes discussing things quite difficult in general.