Why would that necessarily be a problem? If it's a form of money, to be exchanged for goods and services, why does the specific currency matter? For most people

Why would that necessarily be a problem? If it's a form of money, to be exchanged for goods and services, why does the specific currency matter? For most people it could be just like switching from Francs to Euros, say -- a little disruptive in the short term but overall no big deal. If a competitor is able to fix some of Bitcoin's serious problems, it deserves to win. Though I can understand if you're worried about competitors that lack some of Bitcoin's key properties.