I don’t but I’ll hazard a guess. Firstly censorship, they have to be careful what they say so maybe using the US Embassy account it’s a way of saying “we blame america” whilst still asking for help.
Secondly because of censorship maybe the general consensus that their downturn IS the result of US behaviour. So they believe their government has let them down and genuinely believe US can help them.
Maybe ironicly as well but I don’t see it, anyone else got suggestions?