That is one way of modelling things, and it is correct. However, modelling the width of the pavement as part of the crossing is another, more detailed, way of modelling things, and it is also correct. In particular, it allows for a kerb node to be added, and for changes of surface along the crossing to be represented.

I’m not saying everyone needs to map things like this, but please do not remove detail which someone else has spent time mapping. Thanks.