Way to much research and not
Way to much research and not enough actual ownership will have you making all sorts of false assumptions about PHEV's.
I leased a 2015 Ford Cmax PHEV with advertised range of 20 miles on a charge it got that in the winter in Portland, Oregon. In the summer it would get more like 25.
I don't drive very much but I would put gas in the tank every 4 months or so if I was primarily driving around town. I very rarely would have a day where the gas motor would engage. The primary reason it would engage was due to sudden acceleration.
Since purchasing that car I have purchased a Tesla Model X, and an Audi Q5 PHEV. We use the Audi on long trips. It is an excellent car.
The Tesla model X, while awesome, isn't great for longer trips as we bought the 75 kw model with the shorter range. After some range deterioration it gets about 212 miles or so on a charge. This makes longer trips more difficult.
PHEV's are great cars that provide for a quiet and excellent driving experience.