The perception some have is instead that of inserting gender where it was irrelevant. (Those "some" do not associate 'he' and masculine, probably also for cultural reasons as expressed nearby.)
You may not fall into either of those two camps, but let me assure you, it's a lot of people.
For reference, the gender-neutral singular in English is "they/them/their"
they /T͟Hā/ pronoun
2. used to refer to a person of unspecified gender.
I think thou'st meant "Thou may not fall into either of those two camps, but let me assure thee, it's a lot of people."
The commenter thou art replying to is a singular person, not a group, and as we know, while other words may come and go, the use of pronouns in a language does not change over time.
Let me also assure you that "they" hasn't always been (and still isn't to many) accepted as a singular pronoun. Crazy how things change.
In fact, their "close" relation is just apparent: it seems that 'he' comes from variations from the demonstrative 'ki' ("this/here"), but 'she', while still coming from a demonstrative, comes from a different demonstrative, 'so' (feminine 'seo') - the source of 'the' -, which came into use to disambiguate as original feminine 'heo' collapsed into 'he' in spoken language.
Although less common, this is nothing new. I've seen texts that use "her" as the primary pronoun since the 90's.
(And yes, people have been pointlessly complaining for that long).
This neither seems in line with the traditional use of 'he/him' in English texts, or even the neutrality of 'he/him and or she/her'. It reads more like a stunted attempt to virtue signal. I'm quite confident that Civilization games skew to male players, rather than female.
What a great way to alienate readers. More so when gender was not a central feature of the article at all.