Key legal question
Whether the 2017 revision justified reducing the helplessness allowance from medium to light.
Extracted holding
The alleged change in circumstances was not proven with the required probability; the claimant still met the requirements for a medium helplessness allowance.
Extracted reasoning
The court found continued substantial help in at least three daily life functions and continued need for personal supervision. The revision file and home assessment did not reliably show a material improvement justifying a reduction.