That said, it is still to be avoided where feasible.

There is a big picture principle here. And that principle is that our ability to develop software is fundamentally limited by our ability to keep track of what is going on. So every step we take to avoid developing (or to remove) dependencies is another step by which we have extended what we can do with the software we are developing. You have by that much made it easier to develop more, fix bugs you find, and migrate support from one person to another.

Pick up virtually any book on software engineering for more.