So here context is important. The ‘they’ in this line is directly referring to the ‘any character’ that has the cloak, that’s the context. There’s no other meaning to the word ‘they’ that would make sense. To say that all characters would be earning echoes they would have to change what the sentence was already referring to. ‘Once any character receives the cloak, all characters linked to that account will receive the echoes’ etc etc
While a little unclear the sentence wasn’t misleading in any way.
And yeah, it sucks for alt-holics 