If the new shared skills are 100% enough for a master-level crafter to HQ stuff equally as good as someone with all crafting classes at 60, then it necessarily means that the new shared skills replace all the cross-class skills.

This in turn means that every single crafter fresh at level 60 will play the same. (Basically like how it is now.) The differences only start to show once you obtain specialist status.

But then I find it hard to believe that they could differentiate 8 specialist classes enough such that they all play differently even though they all have the same base shared actions. Hmmm...