I received this plant several weeks ago. It had beautiful flowers and was very healthy. The flowers lasted about two-three weeks, it had three flower spikes. The lower leaves were variegated, as described by our vendor. Very happy with it.
Last night, I found the time to repot it, as you can see from the vendor's pictures, many healthy roots but needed to be tidied.
I removed the frayed and limp sphagnum moss, and in the process, I pulled off this little growth, which I have circled in blue.
I was totally shocked, thinking I had damaged the plant, I was an awful re-mounder, I was careless...OYE, such drama!
But upon inspection of the severed growth, it appeared that this was a smaller seedling added to the clump? Or maybe the mother plant decided it was big enough to grow on its own?
I agree with your conclusion WhiteRabbit. The baby plant had a very good root system. I am confident that with time and good care it will grow into a very nice plant.