Those sound like great things to have, especially for benchmarking/case studies, but I don't think they're part of what the web server should provide. There are lots of applications and many control panels already have plugins with that functionality.
Still, I, for one, would be really, really, really interested in benchmarks showing memory usage and CPU load over time with different servers. Really interested. That, I think, would go to the heart of what makes LSWS great.
"...of shoes and ships and ceiling wax/ and cabbages and kings,/ of why the sea is boiling hot/ and whether pigs have wings."