The funny thing is that "dine anytime" is a fairly new concept (in any class of service, viz. F or J).
Sure, Qantas haven't moved with the times (pun intended) on this, but even CX were only in the last five years or so touting that they had anytime dining. Some carriers (TG, LX and LH to name a few, or at least they were not about 5 years ago) also haven't embraced the idea.
