Another one that I got today, 7 p/b's and 3 new growths, all in a 3" pot .
What concerns me though is the fact that it's potted up in what appears as
regular potting soil! Alarmed, I contacted the seller, and was informed that
when they purchased the plant 6 years ago, it was in regular potting soil,
so they left it this way and it performed well for the seller, blooming
reliably and producing a lot of new growth year after year.

Should I let it be, or would it be wise to replant it in another media?

Assistance greatly appreciated,
Mariana