under "LEEDuser’s viewpoint" your only refer to Option 2:
"This credit is an extension of the outdoor water use prerequisite. It uses the same methodology and awards a point for exceeding the prerequisite requirement of 30% and reaching 50% savings. A second point can be earned by demonstrating 100% savings, but this path requires teams to use alternative water sources such as non-potable, recycled, or reclaimed."
I would recommend to clarify that with Option 1 (no irrigation) 2 credit points can always archieved (as long no healthcare):
"Option 1. No irrigation required (2 points except Healthcare, 1 point Healthcare)
Show that the landscape does not require a permanent irrigation system beyond a maximum two-year establishment period."