There is nothing stopping people from applying for these perks;
It isn't guaranteed, but it might be possible for serious crafters to gain access to them.
From my p.o.v there isn't really a need for any perk or an alteration to the system, as both potion brewing and wand crafting can become extremely lucrative for people that take these feats.
QuoteArtificier:
Pouring your magical essence into artefacts and goods holds no secret to you and you are capable to do it more efficiently.
- Bonus: Crafted Wands will have a bonus d4 charges
QuoteHerbalist:
Being a competent herbalist allows you to cut corners while creating certain balms, ointments and potions.
- Bonus: -10% to the cost of brewed Potions
It isn't guaranteed, but it might be possible for serious crafters to gain access to them.
From my p.o.v there isn't really a need for any perk or an alteration to the system, as both potion brewing and wand crafting can become extremely lucrative for people that take these feats.