Yes. I'm sorry but how is this not obvious? Do you enjoy hand-writing code on paper?

The natural medium for math is on whiteboards and paper. A computer algebra system like Mathematica is useful, but it augments what is traditionally a paper-and-pencil activity. It makes sense that the standard notation for math is something that is amenable to physical tools.

And it makes sense that the computer tools to assist mathematicians should more closely match this standard notation.