Earlier quoted context omitted.
I don't think the Latin alphabet is particularly well-suited to English either. We pay for C, but it never does anything K or S don't already do. Yet, we cannot be bothered to buy letters for 'sh' and 'th', digraphs which cover two sounds apiece and are extremely common.
DISCLAIMER - rant below. The problem isn't Latin, the problem is how you use it. Nobody forced you to sometimes use C when you mean K. There are many languages where these letters don't overlap. Nobody forced you to use both PH and F for the same sound. Why even use PH? It's not like anybody cares if that particular word was stolen from Greek or not. And if some people do - they can check it on wikipedia. Make it all…
I guess keeping compatibility over long periods of time can have a lot of value, for OSes and languages alike...