Title made me think Stallman did this. FSF = Free Software Foundation not these people. Are xhe and xhem even real words? They make absolutely no sense
Gender neutral pronouns are important to some people. Everything so far for English will either be made up, or have some problem.
I'm not sure why you think xhe makes less sense than either he or she.
Regardless of what you might think of the gender inflexibility of "he" and "she", it's pretty clear that words like "the" and "they" are not candidates for progressive change regardless of your position on feminism.
The PR is satire, and judging by many of the comments on this thread, quite good satire!
I didn't realise the search and replace for "he" was done poorly and includes "the". That possibly weaking the satire but increases the trolling.