It might be hard to put ones finger on a reason.
I noticed too that the flower counts are similar Darlene. From the side, the inflorescence on the left seems to have poorer or a more open arrangement and yet at first glance, the inflorescence on the right looks shorter and over crowded. On further inspection the length really appears to be pretty much the same.
I am wondering if it is just a totally random, freaky thing OR is it by chance a culture thing? I have no idea but I use to grow these in Florida in straight sphagnum with slow release 20-20-20 Dynamite. With the way these roots can inter twine, I would wonder to myself, did that inflorescence some how get a bit more in the way of water and nutrients, or is this a result of a completely random event?
I think after about 15 minutes of thought I might settle on freaky event and just enjoy the beauty of the flowers.
It is either that or blame it on my “Judges Eye” that might make me notice these things? Now my brain would hurt so I would have a little bourbon on the rocks.