As the article pointed out, the problem here is you can't easily deal with multiple branches stacking on each other. You may argue that it is possible to put a

As the article pointed out, the problem here is you can't easily deal with multiple branches stacking on each other. You may argue that it is possible to put all these changes into one branch, but "asking 6 people to review a 500+ lines change, in which only ~100 lines is meaningful for each reviewer" is not a nice thing to do and it obviously delays the code review process.