The parent seems to be implying (taking other comments into account) that people "cargo cult"-ing on ideas like "just use bcrypt" might work now, but it will become a liability in future when bcrypt is weakened or broken (making it more difficult to get people to switch to the next standard practice).
That's odd, I don't think anyone is taking the advice to mean "use bcrypt for ever", I'd imagine that everyone understands that we use it because it's good enough for the foreseeable future.