It is regrettably common that Kia dealers don't charge the battery of the PHEVs that they have for sale.
The PHEV tries to maintain the traction battery at a minimum of about 18% - 20% charge, which equates to zero miles of EV mode range. It can drop below 20% in normal use, or from sitting unused for an extended period. If it gets down close to zero percent, contemporary wisdom about rechargeable batteries in general suggests that this is bad for the battery's lifespan.
If it had been sitting in southern California summer heat for a year and fully discharged, I'd be leery. If it was in a cooler clime and at least 5% charged, I'd be less concerned.
There is an "app" that you can access via the console that will show the state of charge of the traction battery. You might want to look at that the next time you visit the car, before you've driven it and given the ICE or regenerative braking a chance to bring up the level of charge.
If it's currently around 20% charge, then if you take it out for a test drive on the highway for 15 minutes or so, you should then be able to pull into a parking lot, come to a complete stop, see the "EV" light come on on the dashboard and hear the ICE shut down, and then toodle around at low speed in the parking lot without causing the ICE to come on. It helps to have the AC and fan off for this kind of test.
I don't like to beat up on car dealers more than necessary, but I also don't like to be taken advantage of by them either. The price that you mentioned strikes me as one that is only "fair" for a PHEV EX Premium that is recently landed on a lot. If it had been sitting there for almost a year, I'd be wanting to get the price down somewhat more. On the other hand, chances are that this dealer came to have this car on their lot for so long because they have been unwilling to negotiate. You might actually find that you can get a better price from a nearby dealer who is more adept at negotiating.
Hope it helps. I still very much like my 2018 PHEV and I'm glad I purchased it.
2018 Niro PHEV Gravity Blue