Re: 5 eyes?
Having personally known quite a few people (but, not involved with their activities), personnel, I'll suggest, no.
Too clumsy. FVEY is a *bit* more clever, adding authentication of certain sorts, which I shan't discuss.
Not leave shit wide open and hope for the best, their own equipment included.
China and Russia, the same.
This looks like a classic human foul-up, due to likely, a poor selection of copypasta code and distracted, likely pressured code review, if that was even present and not inherited abomination, which never did get code review.
To be perfect, divine. To foul up, quite human.
But, that's this analyst's opinion.
I'll now go to bed. To get 8 hours of sleep.
For the record, for fun also, it's 4 AM where I am.