I don't expect it will be very difficult to get a Chinese flavoring shipped in under the radar in the future. It may not be as readily available in the states, but veteran vapers should have little problem.
I mostly believe this as well but the risk of losing it is on the table and it sucks. And I'll only buy geniune concentrate in factory sealed bottling. I won't take some vendor's word if it isn't in original packaging.
Personally, and I DIY - this is not an acceptable ultimate solution.
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Not, it really isn't. I don't mind unflavored but being forced to go that route is a punch in the face.