I don't think the resale value for this PHEV is any less - proportionately - than most of the others I've seen. You can look at the Volt as a near comp. (at least for a two year comp) The first 2018 Claritys are 2 years old now. Cars.com shows a range of $22,600 for the base and $26,285 for the touring. Considering that the original pricing (minus state and federal credits) was about $29,000 for our Touring model, it's not looking like there's a severe drop-off at all. Yes, if you compare the original sales price before the credits, there is about a $10K loss, but then again, the potential steeper loss in value could be considered one of many reason for the credits… It's not complicated though. If Honda decides to orphan this vehicle, it'll really crash in value. At that point, a 3 or 4 year old resale on a clean, low mile vehicle, might not even get over $10K.
Many may just decide to drive theirs into the ground - the battery and electric drive have strong warranties in California. But if someone bought this car thinking it would somehow have a high resale value… well, that's unfortunate.