Actually, if you read the passage from the FCTM carefully,it says nothing about blending:
When the PF performs sidestick inputs,
a constant G-load maneuver is ordered, and the aircraft
responds with a G-Load/Pitch rate. Therefore, the PF’s order is consistent with the response that is "naturally" expected from the aircraft: Pitch rate at low speed; Flight Path Rate or G, at high speed.
The wy I read this, is that pilot commands constant "g". Aircraft's response is g-load/pitch rate (it always is, in any aircraft!). However, at low speed one needs higher pitch rate to obtain the same g, than at hi speed.
So, for any commanded "g":
Lo speed - pitch rate is large, so the pilot sees mainly pitch rate
Hi speed - pitch rate small, so the pilot feels "g"...
Besides, I guess there's no speed input into the pitch law (alternate pitch law is the same as normal and it works even if all ADR's are lost).How would this g/pitch blending work? 