Several 0 payments in that list, is this to be expected?
Yes. They were not paid in the superblock.
I'd be curious to see the ins/outs of this process. is there a minimum point requirement?
No. This is a number scaling issue. To do that, import the data into excel and just reverse engineer it, and ensure the payments below .25BBP end up as zero.
We do require a .25BBP minimum to be in a superblock vout (for compactness).
These #'s don't match what you had on your chart, and it sent a few 0.00 BBP transactions this seems strange to me.