The point is that crafting is a memory controller and botcrafter's activity now, and at this point you might as well give real players a fighting chance.
In FFXI you could level quickly if you had the resources. Your logic fails. That system was even harder to progress in, even though you could progress 10 times faster.
The point is to stop pretending the time it takes to level crafting is even done by crafters instead of programs any more, and to start emphasizing cost of mats as a means to progress in crafting. Not time.