make, configure, automake, autoconf, MSBuild, Apache Ant, rake, gradle, jake, grunt, gulp, fez
Sorry, I'm sure your system is nice and organized. But now you've introduced one more build dependency that will make projects based on Fez just a little more difficult to on-board.
Fact is, people want different things from their tools. Each of the ones you mentioned has its own strengths and weaknesses. They tend to be better than their predecessors in some way, for some specific need. And this is how progress is made... via a thriving marketplace of [ build tools, languages, frameworks, libraries ]. I wouldn't have it any other way.
Also, I would prefer developers spend more time making general applications and less time making tools for other developers. I'm not saying people shouldn't make great dev tools, I'm saying more people should make great applications, and less people should make great dev tools.
Fact is, people want different things from their tools.