Change in Divide Surface component?

I've noticed that the updated Divide Surface button appears to behave differently from the previous one in older versions of GH.

When trying to create sets of 4 point grids on surfaces, using the often demoed workflow of Surf Param > Divide > SubSrf > Surface Divide to get the 4 points of each sub surface. The current Divide Surface button only reads out the 0 and 1 points. Whereas the old component on the exact same definition will read out 0, 1, 2, 3 as hoped!

Is there a simple reason for this that's passed me bye? - i've been head scratching all afternoon...

Thanks,

David.