Re: 300 baud!? You were lucky...
Replacing it with a menu line which would then go and install it might have been nicer than just vanishing it. Or is that what they did ? I don't know.
The problem for Mathematica is that while it is a very fine piece of work and in many ways a superior product especially with symbolic, everywhere I go seems to have standardised on Matlab. So GNU Octave tends to be more wanted on Pi. And now Python with mathematical and scientific libraries is right round the corner on the road map.