I haven't been able to find a link to the actual decision, but an Upper Tribunal has apparently now decided that 'cannot follow' means both cannot because of some physical or intellectual disability AND cannot because of e.g. anxiety, thus clarifying whether all of the descriptors can apply to conditions such as agoraphobia.
There were previously two contradictory decisons on this subject, and of course DWP guidance reflected the most restrictive so people with agoraphobia who were able to leave the house could only score a maximum of 4 points and were therefore being denied any rate of mobility.
I suspect it will take some time to update DWP guidance for assessors, and I doubt they'll be backdating any previous claims so if this may affect you, it may be worth considering putting in a new claim if you were previously turned down completely or effectively reporting a change of circumstances if you believe you should have had an award of standard or enhanced for the mobility component. In the latter case, be aware that your existing award can be reduced as well as increased.
If anyone can find a link to the case report, it was apparently last month, I would be grateful.