Truth. from the "guidance" page:
"More inclusive: Spouses/partners <> Less inclusive: Wives, husbands, boyfriends, girlfriends"
"More inclusive: Spouses/partners <> Less inclusive: Wives, husbands, boyfriends, girlfriends"
What if my wife would prefer if I referred to her as my "wife" instead of as a generic, faceless "partner"? By insisting that I refer to her as a genderless "partner", you are failing to respect her chosen pronoun.
Because I have no clue who your partner is (or really if you have one) so I shouldn't assume until I have that information. Note that the words in the example are all plural, presumably referring to multiple other peoples' partners.