Those cams look very similar to me.
Except for the price, I think thats why the XR262H was chosen.

The durations are both 218/224.
Similar valve lifts, with the rocker swap.
The XE262H intake closes 4 degrees earlier than the XR270HR.

I believe theoretically the XE262H produces more torque.
But the XR270HR must be a better product???? $126 vs $312.