It is indeed a physiological need, for both sexes!
However, there's a distinction: what I was discussing here is the lowest unmet need for either sex.
If a woman's physiological sex need is unmet, it's fairly straightforward for her to remedy that situation. Ex-boyfriends, FWBs, ONSes, dates that end in sex ("Sigh... I really didn't want to go out with this guy. But he keeps texting me... and I need to get laid. So, okay"), Tinder, etc. Thus, we don't count this as an unmet physiological need - if it ever is unmet for her, it doesn't stay that way for long.
But there are lots and lots of men with unmet physiological sexual needs. Big problem for many men, at the most basal level of the pyramid.