Personal statement in MR?

I am preparing an MR to challenge activity 11. The original award made prior to the upper tribunal decision in 2017 CPIP/1347/2015 was 'b' four points, which has now been reduced to zero. Reading the recent decisions, it appears (d) is now the more appropriate description as its related to an 'unfamiliar journey'.

The MR will be put together as a factual challenge with a letter detailing therapy sessions (not available during the assessment). However, I wonder if the MR would benefit from a small personal statement of around 100 words. The context is as follows:

The assessment was carried out in the claimants home. The decision maker removed the points citing that the claimant was in a stable mood and showed no visible signs of anxiety. The claimant had been told their cancer had returned six months prior to the assessment and were still awaiting a treatment plan, in addition they had found the hospital had made errors, and were awaiting a telephone call on the day of the assessment for details of surgery. The assessor was made aware of the situation, and as you can imagine, the claimant was suffering from incredible levels of anxiety. The second point, is the assessor made that observation whilst the claimant was in the safety of their own home, not during an unfamiliar journey.

Would such a statement dilute any factual challenge, or would it humanise the situation and place the facts in context?

In other words, would it help or hinder?

Sorry about that, I don't think I explained the situation that well. The information contained within the factual challenge will demonstrate a history of severe anxiety causing overwhelming psychological distress in unfamiliar places, by use of additional medical evidence not available at the time of the assessment.

I was asking if it was worth adding the personal statement as an addendum to the core argument above.