That is something that should be obvious to any developer who worked with a real QA-team or person. They just have a different mindset.
The problem with contemporary software development is not only that often the majority of QA work is shifted left (meaning to the existing devs) but also that the developer mindset is contagious. Have QA-people, who are usually in the minority, work too long and too closely to the devs and they become blind.
I worked in V-model teams where the only communication between the development team and QA-team was supposed to be the spec. I still think that is the best way to develop software that works.
The problem with contemporary software development is not only that often the majority of QA work is shifted left (meaning to the existing devs) but also that the developer mindset is contagious. Have QA-people, who are usually in the minority, work too long and too closely to the devs and they become blind.
I worked in V-model teams where the only communication between the development team and QA-team was supposed to be the spec. I still think that is the best way to develop software that works.