So the FIA in their infinite wisdom now made the case of moving under braking purely subjective and open to any kind of interpretation.
Which of course means, different stewards will adjudicate it differently and creates even more of a grey area in this matter.
Instead of tightening up he rule or coming out with a more definitive explanation, they have simply made that scenario even worse and IMO more dangerous.
The FIA never fail to make things more complicated than they have to be.
There are firm rules from all the junior categories up to GP2 on this matter, but they now decide to make it a lottery in F1.