Agreed. PP is often a crutch for those who can't get it right in camera. It's like when the red camera came out and everyone flipped over being able to switch WB in post, reframe in post, change exposure in post, etc. and declared it the only usable cinema camera. Aren't those all the things it's your job to do correctly on set?
I hear that a lot from old-school photogs and I have to agree I don't understand that position. I do understand awinphoto who says that setting wb correctly and shooting jpeg helps him save time and thus helps his business.
But for other scanarios, "getting it right" on set is certainly admirable and nice, but hardly necessary if you are ready to invest the time to do corrections in post. Often, it sounds more like a delayed ego-trip to me like from people that are not comfortable with the fact that some skills are not as valuable as they were in the analog days. Please don't get me wrong: It's good to learn the basics, but for some the necessity has decreased just like you don't do your balance sheets on a piece of paper w/o calculators nowadays.
If you can reframe a high mp shot in post, why not shoot with a security margin? If you can change exposure in post, why risk blown highlights? If you can set the correct wb later on, why not use awb that usually gets it right? Imho that enables you to put more energy into creativity and (if shooting with people) communication?