Actually...yeah you're right. I actually went to the book and it evens says for itself:>In particular, note how some advantages and even powers work together. The Gadgeteer can use Quick-Thinking to speed up the process of inventing (see Inventing, page
145) and Skill Mastery (Technology) to make some inventing checks as routine. Similarly, note the Martial Artist’s Power Attack advantage, good for doing extra damage to
slow, tough, opponents, and the Skill Mastery (Acrobatics) advantage for pulling off formidable (DC 25) Acrobatics
checks as routine!
However, now that I think about it, the cost for having enough skill points to do such things is pretty comparable to having a flawed Variable power anyway. If you wanted to make something potent and convenient as a normal power, you would have to have a lot of points into both skills and the Quickness effect.