Brassia roquebrune 'spider' dry aerial roots: repot or not?

[Piao Liang]

I have a Brassia bought in August 2015. Somebody in the forum told me to repot it but I was afraid from bad experiences repotting anything other than Phals. It has massive new growth but many aerial roots dried as it is dry in Marseille. But I followed instructions for watering with the skewer method and weighing and I think it had the right amount of water judging from its growth. However, it has become very heavy and it hangs forward. It has started new root growth. My question is, should I repot it or should I leave it alone to recover its roots? I am showing a picture of when I got it and 2 in its present state. Many thanks!