Yeah bud, I would take these compressive life cycle examples with a pitch of salt.
So many other factors come into play with regard to maturity... alt, temp, VPD, humidity, light intensity, nutrition, nutrient cycling, stress factors. All of which have a drastic effect on when or how fast plants mature.
They have facilities with controlled environments and can regulate everything to a T, then it easy to get the bud to mature faster. but as soon as temps on the leaf surface go over 33, you loose a day. A stress signal could also set you back a day, root problems can set you back weeks. Not all stress is bad but there is a line I guess.