Besides, it's easy today to frown upon the choices made at a time where common image formats included XBM, a plain text subset of C!
One day, people will be sad that we didn't anticipate 3d models in <img>. It makes no sense to add support with the current state of technology.
[1] http://1997.webhistory.org/www.lists/www-talk.1993q1/0182.ht...