And worse, it is harder for the American government to eavesdrop on US soil than it is outside America.
Of course, if a national spying apparatus is after you, regardless of the nation, pretty good chance jurisdiction doesn’t matter.
I don't have any particular insight here, but isn't that why Five Eyes is used, a workaround for what would otherwise be illegal activities. Not that the current USA regime care about the law, of course.
The GP mentioned Snowden and yet you say this. What material and significant changes have happened since 2013 to make this claim?