[bdamm]

They're willing to pay for security, but they don't want to pay a penny more than they must. Security is not, and never will be, an open-ended budget.

[snagglegaggle]

So they prefer cost to security. That's fine, most people do. If being quantum resistant was a priority they would figure out a way to do it and it may be similar to what I described, or not; but it could happen without hardware implementation if it was truly desired.