[aidenn0]

I think it's because integrated tools parts are often worse than the non-integrated versions and when people are forced to use them, it means removing choice.

A half-dozen well integrated mediocre tools is better than the sum of its parts, but that doesn't mean it's better than a half-dozen not-at-all integrated excellent tools.

A half-dozen pretty good tools that are well integrated is going to be excellent, but you'll still have some greybeards saying "I have to click through 12 menus to frobnicate the widget in this thing, while my old tool I could do it with a single command"

99% of "Integrated tools" fall more into the first category than the second, which makes sense; N non-integrated tools can have N parallel teams working on them, while an integrated tool cannot. This means each tool will get only a fraction of the effort in the integrated tool; it's a special case of Conway's Law.