I agree. even if focusing on one profession, let's say tailoring.
You need to get cloth, which requires dye and jute, which requires jute seeds and water, maybe a scarecrow. and the cloth becomes stacks of FIVE!? and then on top of cloth you need string to make items, and then space in the inventory for said items.
To level up just 1 skills 9-10 you need about 1400 cloth. In stacks of 5...just how much time i wasted running back and forth?
I know the reason we see stacks of 5-10 on crafting stuff is they want more money from us to buy bags, but common, get it somewhere else. The 5 stacks makes the game undesirable to play.