Personally I agree with you, except that sometimes you find out that a library you depend on hasn't been upgraded and cannot be used in combination with your other libraries, due to some conflict somewhere. At which point one needs to drop the library from the project and that can prove to be costly, so it is better to identify libraries that aren't well maintained earlier rather than later. This isn't a problem for well established popular libraries, but is a problem if you're using newer, more cutting age stuff.