I guess the topic is controversial, but I'm wondering why RoS kept cantrips from 5E. Magic in Symbaroum is dangerous and you're supposed to gamble with your soul each time you cast a spell. Would you gamble with your soul to light a torch, perform a basic attack (many many times per day) or perform parlor tricks?
Mystics (as opposed to Wizards in 5E) can use light armor and simple weapons and have the same d8 Hit Dice as everyone else. When they need a light, they should bring a torch/lantern. When they want to attack a single weak opponent, they should pick up their staff/spear/light crossbow/horseman's bow and just whack at it. Now, when the risk is great, when confronting a real threat, then use magic, by all means.
All this to say that cantrips (at least the 2 favored ones that you get) go against the dark fantasy of Symbaroum, especially against the idea that 'once upon a time, magic was free of burden but not anymore'.