You could measure it to double check, but I agree. That's a good quality film cap and short of spending way more than the speakers warrant, there's unlikely to be any benefit there.
I did think that when I saw them. Might just do the coils. I have some air cores from Wilmslow I bought years ago but they have no values just a kind of code number on them, I’ve just ordered an LCR meter…if I can work out how to use it properly…😬