As someone who has no real clue on force powers, how so?
Once they learn telekinesis, they can use their Alter skill to help several different skills. Climbing / Jumping, Lifting, defensive rolls such as Dodge or Melee parry - there are a number of applicable situations.
Using the Force, they can make themselves (or other objects) effectively lighter, or used the Force to deflect an enemy melee or brawling attack.
In game terms, they can add their Alter dice to a number of applicable skills and situations. At 1D Alter, it's actually a negative. At 2D it's break-even. But once they are at 3D in Alter, it is worth the MAP to gain bonus dice.