No, I'm right in what I say. Gendered pronouns are more commonplace in countries where women are still conferred a subordinate status. It's not a linguistic feature, it's a patriarchal one.
I know it seems like a trivial thing, but I don't think it is. Before the Enlightenment all Western media was written from the perspective of men, by men and for men, with the assumption, true at the time, that it would only be men in a position to act upon the information.
This is reflected in vocabulary 'mankind' 'manpower' 'councilmen' etc. Masculinity thereby being the norm, with women only referred to as as an exception.
Since the second wave of feminism is the 1960s there has been a change in understanding, and words have become adapted to acknowledge women 'comedienne' or gender neutral 'firefighter'. A good example of this being the Star Trek opening line:
'Where no man has gone before'
changing, in Star Trek, the Next Generation to:
'Where no one has gone before'
However, not all countries yet have equal rights for women, yet alone gender-neutral language. Given that Upwork is meant to be (in theory) forward thinking and inclusive, the assumption by some posters that everyone reading, hiring, working or in a position to change things must be male (the new CEO is, anyway, a woman) should be contested.
I think it’s just a language thing. Most people who are not native English speakers don’t pay attention to this. I get confused all the time as I tend to use “they” instead of he/she and sometimes it sounds really weird
I think you have given a very reasonable explanation with your comment “Western media was written from the perspective of men, by men and for men” so probably that is the reason why most people would use “he” rather than “she”.