I mean, we (probably) do agree and this is an exercise in talking past each other - but the issue here is that Bitcoin appears to be preserving its value and, all else equal, something that preserves it's value is going to appreciate in price faster than the inflation rate [0].
So if someone is worried about monetary creation devaluing the currency, based on what we've seen so far, they'd be doing well to buy Bitcoin. Now you are correct that that isn't an inflation hedge. But typing out all that is a lot of words so unless someone invents a new short phrase to describe "monetary creation devaluing the currency" people are going to keep misusing the word "inflation" to mean that. And, frankly, that is what the word should mean in monetary contexts; the technocrats can go hang. Hopefully not literally, but they seem on a mission to upset people.
[0] Assuming the situation snaps back to pre-COVID trends, anyway. At the moment there is a lot of excitement and the M2 is going down.