There is also a non-technical reason for this retrogressive step. One that I have experienced myself.
Some people consider themselves too important to use "free" (=, in their minds, "cheap") software.
Because of this what was going to be a well managed transition from MS Office to OpenOffice, with Sun's assistance, ended up in disaster. Incidentally, unless things have changed a lot since I retired, it is NOT feasible to run MS Office and Open or Libre Office together for any long time.