You're looking at it from a logical view,
The answer is pretty much that her partner is a minority that the state hates, so they want to punish that person and anyone who supports her,
And it's just that. Perhaps they could escape, but I presume they both have family there, and then they may not be able to return, etc.
Hard when those sites are things like your bank, your government official stuff pages, etc.
This attestation stuff is a "not such a bad idea in its basic principle" thing that will actually absolutely get abused everywhere in every way including being used to kill off browser competitors, enhance monopoly positions, etc.
It needs to be stopped now.