Paphiopedilum with entwined roots at top of pot.

[Hedge]

This is one of two almost identical Paphiopedilum (ii?) I was given in December. (Their flowers are different) They came from the same supplier, I bought the second because it was half price and the gift one had been so nice. Today the dog knocked the one in the picture over. Despite being in a chipped mixture the roots were as shown all near the top of the pot. I have gently separated them and repotted back into the same mix (off the floor!!!!) into the same 4 inch pot.

Now I am wondering three things:
a) Should I tap out the other one and see if it too is stuck at the top of the pot?
b) Should it be growing in a finer mix to allow the roots to penetrate it rather than going out to the edge and then round and round?
c) Should I be growing it in a very wide shallow container to let its roots spread out more?

Advice welcomed

Heather aka