Impermanent loss only occurs to liquidity providers

That's exactly what I said.

but liquidity providers also like to wrongfully call it "impermanent loss"

and is the movement of their pair ratio as price moves.

AKA the price slipping.

I did not make a mistake.
Impermanent loss is something even experts incorrectly describe.
If they ever use the word "arbitrage" in the definition: they are wrong.
And they ALL use the word arbitrage.
Arb has nothing to do with IL.