A nova errata responde claramente à pergunta:
Portanto, pontos de poder adicionais não requerem gasto de karma, mas exigem a perda de uma metamagia ao iniciar, e só podem ser adquiridos por iniciação.Change to following sentence: “You get a free Power Point whenever you increase your Magic attribute, and you can gain a Power Point through Initiation (p. 324) instead of gaining a metamagic.” To: “If you’re an adept, you get a free Power Point whenever you increase your Magic attribute (though this doesn’t apply to mystic adepts, and you can gain a Power Point through Initiation (p. 324) instead of gaining a metamagic.”