Not really. Mine is 7.5 years old and I don't see why I would need to replace the battery in the next 18 months. True, I could get 50 miles out of a charge when new and now I "only" get about 35. Part of the decrease is higher resistance tires when the originals wore out but it's still 35 miles of all electric per charge. I only need to buy gas a few times per year. Even if the battery degrades all the way to zero, it still gets about 38mpg in hybrid mode. Yes, you do still need to do the maintenance that an ICE needs but it is at longer intervals, so less. I only need to change the oil/filter every two years because the engine almost never runs. If I was cheap(er) I'd only change the filter every 4 years. The brakes will probably never need replacing because most stopping power is regen, not friction. The last car I had that needed a tune up was my first Bronco.A PHEV gives the consumer the worst of both ownership models. An expensive battery to replace in 7-9 years, charging equipment costs, as well as oil changes, timing belts, tune-ups, filters, etc. It's a technology bridge vehicle at best and necessary for those that don't have the ability to charge at home.
A PHEV is a compromise that gives some electric driving range without any range anxiety. An individual needs to decide if that compromise works for their use case. My lifetime average is 232mpg over 60,000 miles. That can't be the worst ownership model.