Currently, if one wishes to enable <math> support, they must install or compile texvc, OCaml, GNU make, LaTeX, Ghostscript, dvips, ImageMagick, and possibly a "supplemental TeX package" according to http://www.mediawiki.org/wiki/Manual:Enable_TeX.
This is a nightmare, especially on any shared hosting environment. The math support is also written in a programming language that few people are familiar with (OCaml) and in general has far too many dependencies.
It should be simplified for both the end user and for the developers. Rewriting math support would likely be a good first step.