If the Bitcoin network just decided to double the amount of Bitcoin in everyone's wallet, would it matter? On a very real level inflation doesn't matter. What matters is who controls the inflation and how many buyers are lined up to support a given price.
The advantage of hyperinflationary assets is that they can maintain unit-of-account status while also generating exponential growth. The growth doesn't come in the form of an increasing token value, as price is offset by exponential yield and new money. It is in this way that crypto can become a store of value, a medium of exchange, and a unit-of-account all at the same time. Bitcoin can't do that. It will never be a unit-of-account due to deflation.
Yes it would matter. It would destroy it.