<equations> vs. \begin{eqnarray}

A friend and I are starting a Drupal for mathematicians (who know LaTeX, but little else). Anyway, I am wondering if there is a good reason why Drutex uses <equations>...</equations> instead of just supporting the \begin{eqnarray}...\end{eqnarray} environment from LaTeX. At least for my target audience, the latter would be preferable. Thanks in advance for any comments/advice.

Matt