I haven't seen the code but based on the description it's a benchmark that was originally in scheme and ported to javascript.. sounds fine to me. And "kernel simulation benchmark" may have a usecase too, just because you can't think of it, doesn't mean it isn't there ;) I can think of tests for scheduling, threading, asynchronous code, I/O when i think of "kernel simulation".

Again, people like to use V8benchmarks, when it's not made for browser comparisons. The fact that it's often used only shows that there is a lack of a real cross browser benchmar suite.