Original sentence: The title of this championship may be confusing to some readers from countries where baseball is not a major sport (or even where it is), because the "World" Series is confined to the champions of two baseball leagues that currently operate only in the United States and Canada
Edited sentence: The title of this championship may be confusing to some readers from countries where baseball is not a major sport (or even where it is), because the "World" Series is confined to the champions of two baseball leagues that currently operate only in the United States and Canada, but represents a prime example of US hubris