They most likely don't do it intentionally but Microchip sure is screwing it up...
I don't think they give a ****.

All of this was brought to their attention a while back and the response was basically "sucks to be you".
It was "too hard" to convert mpasmx to 64-bit, and they "have to have all 64-bit tools" because MPLABX
is cross platform now and one of the popular fruit vendors dropped support for 32-bit apps in their latest OS update.

It seems that the engineer(s) who worked on mpasm have left (or been fired), and the XC8 team is left holding the bag.
They just substituted the assembler used by XC8 (which was part of the HITECH stuff mchip got when they bought them).

Progress, boys and girls, progress! Who wants to be using some old 32-bit app? This is 2020... get with the program!