(a) Except as provided by Section 1202.201, at a hearing on an application filed under Section 1202.051, the court shall consider only evidence regarding the ward's mental or physical capacity at the time of the hearing that is relevant to the complete restoration of the ward's capacity or modification of the ward's guardianship, including whether:
(1) the guardianship is necessary; and
(2) specific powers or duties of the guardian should be limited if the ward receives supports and services.
(b) The party who filed the application has the burden of proof at the hearing.