Call it proof "for the present" don't assume it will be changed. I just want proof for the now.. If things do change in the future, then change the proof. IOW, "Here is our proof today, at least until something refutes it" and it may very well remain proof forever, just as so many things in science have.
Call it proof for the present if they must, while to most people, it's the same ol' proof we've always expected, just with added unnecessary complications. But they don't do what's reasonable, they instead say proof is not possible. They wrongly assume it will change, and make provisions for it, while though that could happen, it won't necessarily. Makes no sense at all to see it that way, so the only conclusion I can draw from their screwy conclusions, it's an excuse.