Not a legitimate complain at all--the jury is still out as to whether it will ever be possible to create a quantum computer capable of breaking current asymmetric primitives.
I don't know why you're saying this isn't a "legitimate complaint" (or what even gives you the legitimacy to criticize such things), if anything this is just as, if not more legitimate than your comment.
Time and time again people thought we didn't need to worry about bigger registers/more memory/int overflow/screen sizes/etc. and they were proven wrong every time. Given everything we know so far and everything we've achieved in this field, I'd bet my money on the fact that we will have such capable devices in the future.