Toyota is rolling the finest styling of 2015, the worlds least interesting finishes, and while that’s not a complete deal breaker if the car is sound, it shows a lack of commitment to its development.
This isn’t “why fix what isn’t broken”, it’s looking at something and not seeing a reason to improve it, you can always make something better or more unique or innovative. Toyota stopped caring, knowing that 50% of these are fleet sales and the other half are mostly people who don’t care because it’s the best thing they can get new with a 550 credit score, but won’t stoop so low as to buy a Sentra.