It's always sad to see an EV or PHEV get discontinued, but honestly, the Clarity EV was not a standout product. In key ways (namely, the amount of range for the price) it wasn't competitive with other EVs.
The Clarity PHEV is the highest-volume car to have the Clarity name, clearly the most successful (as it's used outside of California), and for many people, the most practical and desirable car of the series. I'm actually in favor of Honda funneling more sales into the PHEV. I'd love to see more of them on the road.
Loving my new car!