I think the problem is less that there are new tools, but that the new tool comes promising to make the very much what the old tool did, just with much less configuration and smart defaults. But as soon as you start using that new tools for a while the once smart defaults are not so smart anymore (as requirements have slightly changed) and you start configuring it more and more and after a while you have the same mess of customization as with the old tool until someone comes up with a newer tool that has newer smart default and so on...

Its not necessarily bad as most new tools are slightly better than their predecessors, it just takes some getting use to and you have to learn how to structure your code base in a way that you do not have to completely refactor it every time a new build tool is adapted ;-)